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PP 1 Geometry

The document contains a series of mathematical problems related to geometry, vectors, and polygons. It includes tasks such as calculating the center and diameter of circles, determining the number of sides of regular polygons based on interior and exterior angles, and solving problems involving transformations and distances between points. Each question is structured to require specific calculations or constructions, with space provided for answers.

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medupekaone65
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0% found this document useful (0 votes)
26 views28 pages

PP 1 Geometry

The document contains a series of mathematical problems related to geometry, vectors, and polygons. It includes tasks such as calculating the center and diameter of circles, determining the number of sides of regular polygons based on interior and exterior angles, and solving problems involving transformations and distances between points. Each question is structured to require specific calculations or constructions, with space provided for answers.

Uploaded by

medupekaone65
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOC, PDF, TXT or read online on Scribd
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1

1. The coordinates of the end points of the diameter of a circle are and .
Calculate

(a) the coordinates of the centre of the circle,

(b) the length of the diameter of the circle.

Answer (a) ……………………………… [2]

(b) ……………………………… [2]

2. The size of each interior angle of a regular polygon is Calculate the number of
sides of the polygon.

Answer ………………………. [3]

3. The point lies on the circumference of the circle, centre .

(a) If KM is the diameter of the circle, calculate the coordinates of M.


(b) Calculate the length of the diameter of the circle.

Answer (a) ……………………. [2]

Answer (b) ……………………. [2]

1
2

4. The diagram below shows a right-angled triangle PQR in which and


. It is given that , and
R

20

P Q

Using as much of the information as necessary, calculate the length of RQ.

Answer………………… [2]

5. The diagram below shows triangle P.

On the same diagram, draw the image of triangle P, after a translation


using vector [2]

6. The diagram shows vector and a point R.

2
3

P
.
R

(a) Express as a column vector.

(b) .
On the grid above represent the vector by a line segment. [1]

(c) Work out .

(d) Calculate the magnitude of .

y Answer (a) ……………………….. [1]

4 (c) ………………………. [2]

E 3 (d)
F ………………………. [2]

1 R S

-2 -1 0 1 2 3 4 5 6 x
7. The diagram below-1shows square EFGH and square RSTU.
U T
-2

H -3 G
3
-4
4

A transformation maps square EFGH onto square RSTU.


Describe the transformation fully.

Answer ……………………...

………………………………………………………………………………… [3]

8. The size of each exterior angle of a regular polygon is 15°.


Calculate the number of sides of the polygon.

Answer ………………. [2]

9. The coordinates of the end points of the diameter of a circle are ( 3, 1 ) and ( -1, 4 ).

Calculate

4
5

(a) the coordinates of the centre of the circle,

(b) the length of the diameter of the circle.

Answer (a) …………….. [2]

(b) …………….. [2]

10. The diagram below shows a circle with centre O.


The length of the chord AB = 24 cm.
The perpendicular distance of the chord from the centre is 9 cm.

.O
9
A B
24

Calculate the radius of the circle.

Answer………………………… [2]

11. Given that

and ,

5
6

(a) express as a column vector,

(b) calculate the magnitude of .

Answer (a) …………………. [2]

(b) …………………. [2]

12. The diagram below shows the positions of two villages A and B.
B is 150 km away from A on a bearing of 053°.
North

North B

150

53°
A

(a) Calculate the bearing of A from B.

(b) Another village, C, is due east of A and also 90 km due south of B.


Calculate the distance from A to C.

Answer (a) …………………….. [2]

(b) ……………………. [2]

13. The diagram below shows triangle U and triangle V.

6
7

A transformation maps triangle U onto triangle V.


Describe the transformation fully.

Answer ………………………

………………………………………………………………………………. [2]

14. A straight line, l , passes through the points A ( 9,-2 ) and B ( 3, 6).

(a) Calculate the distance between A and B

Answer (a) ………………………… [2]

(b) Find the coordinates of midpoint of the line segment AB.

A 8
Answer (b) …………………………
B [2]
15. The diagram below shows the points A, B and C on the circumference of a circle,
centre O. AB = 8 cm and BC = 6 cm.

6
O
.

7 C
8

(a) State, with a reason, the size of

(b) Calculate the length of the diameter, AC, of the circle.

Answer (a) ……………………………………………………………….. [2]

(b) .................................... cm [2]

16. The diagram below shows a parallelogram ABCD with .

The point E is such that and

A B
70° 30°

E 54°
8

D C
9

Calculate

(a) ,

(b) .

Answer (a) …………………….. [1]

(b) ……………………. [2]

6
S
17. The diagram below shows a triangle S5and a triangle T.

4
T
3

1
9
x
-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7
10

Describe fully a transformation that maps triangle T onto triangle S.

Answer ………………………………

……………………………………………………………………………………… [2]

18. (a) Using the point A marked on the grid below, represent by line segment the
following vectors

, .
[2]

10
11

.A

(b)Write as a column vector.

Answer (b)……………………… [2]

(c)Calculate the magnitude of

Answer (c)………………………… [2]

19. Describe fully the symmetry of the parallelogram below.

11
12

Answer …………………………………………………………………………….. [2]

20. Given that p = and q = ,

(a) express p + 2q as a column vector,

(b) calculate the magnitude of p.

Answer (a) …………………………….. [2]

(b) …………………………….. [2]

21. A table top is in the form of a regular pentagon.


Calculate the size of each interior angle of the table top.

Answer ……………………………….. [2]

22. An isosceles triangle JKL is such that JK = 11cm, and LJ = LK.

(a) In the space provided below, construct triangle JKL. [2]

12
13

(b) Measure and write down the length of LK.

Answer (b) ……………………….. cm [1]

A
23. In the diagram, O is the centre of the circle with radius 15 cm.
AB is a line segment 9 cm from the centre of the circle.

O 15
.
9

13

B
14

(a) Write down the geometrical name for the line AB.

(b) Calculate the length of AB.

Answer (a) …………………………… [1]

(b) ………………………… cm [3]

.A

24. The diagram below shows a triangle P and a point A.

Draw the image of P under an enlargement of scale factor , with centre A.


P

14
15

25. Triangle ABC is such that AB = 7 cm, BC = 4 cm and .

(a) Showing all construction lines, construct triangle ABC. [2]

15
16

(b) Measure and write down the length of AC.

(c) Showing all construction lines, construct, on the same diagram,


the angle bisector of . [2]

Answer (b) …………………………… [1]

26. The diagram shows the logo of a Maths club at a college.


The logo consists of a triangle ABC with its vertices on the circumference of a circle.
The circle has centre O and radius 3.5 cm.
COA is a straight line and angle BAC is 300.
MATHS
B A
300
.O
C 3.5
16CLUB
17

(a) Why is angle ABC = 900?

(b) Using as much of the given information as is necessary, calculate the


length of AB.

Answer (a) ……………………………………………………………………..

………………………………………………………………………………… [1]

(b) ………………………………… cm [2]

27. A company uses thin metal sheets to make triangular earrings with sides measuring
5 cm, 6 cm and 7 cm.

(a) Using a ruler and a pair of compasses, construct the triangle representing
an earring. [2]

17
18

(b) The company wants to alter the earring by cutting through the middle of, and
perpendicular to, the longest side.
Showing all construction lines, on the same diagram, construct a line along
which the company has to cut. [2]

28. In the diagram,


K lines KL and NM are parallel. L
Angle KLN = 433800 and angle MKL = 430. 380

18
p
N M
19

(a) State with a reason the size of angle p.

(b) Calculate angle q.

Answer (a) …………………………………………………………………..

…………………………………………………………………… [1]

Answer (b) ………………………….. [2]

29. In the diagram, O is the centre of a circle and LM is a chord such that
and LM = 32 cm.

.O

300
L 19 M
32
20

Using as much of the given information as necessary, calculate the distance of LM


from the centre of the circle.

Answer …………………………… cm [3]

30. The vector B


is represented by a line segment on the grid below.

20
21

(a) On the same grid, draw another line segment from B to represent

.
[1]

(b) Write down as a column vector.

Answer (b) …………………………… [1]

31. The points O and Q are on a plane. O is the origin and .


(a) What are the coordinates of the point Q?

(b) Calculate the magnitude of .

21
22

Answer (a) ……………………………. [1]

(b) ……………………………. [2]

32. (a) Use the line AB below to construct a triangle ABC such that AC = 6.4 cm and
BC =7.1 cm. [2]

A 6 B

A 5
(b) Construct a perpendicular bisector of line AB. [2]
4

33. The diagram below shows kite A and kite B. 1

x
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5
-1

-2
B
-3

-4
22
-5
23

Describe fully a single transformation that maps kite A onto kite B.

Answer ……………………………………………………………… [2]

34. The coordinates of the point P are (-3, 4), the point Q are (2, -5) and .

(a) What are the coordinates of the point R?

(b) Write down as column vector.

(c) Calculate the magnitude of .

23
24

Answer (a) ……………………………. [2]

(b) ……………………………. [2]

(c) …………………................. [2]

35. The diagram below shows two similar triangles ACD and ABE. AE = 10 cm,
EB = 4 cm and DC = 9 cm. DC and EB are parallel.
9 C
D

4 B
E

10

Calculate the length of AD.

Answer ……………………………... cm [2]

36. The size of an exterior angle of a regular polygon is 30o.

Calculate the

(a) number of sides of the polygon,

(b) size of each interior angle.

24
25

Answer (a) ………………………… [2]

(b) …………………………. [2]

37. The diagram below shows the positions of three villages; Makhubu, Mabe and
Letlhare. Mabe is 12 km due South of Letlhare and 5 km due East of Makhubu.

Letlhare

12

Makhubu Mabe
5

Calculate the distance between Makhubu and Letlhare.

Answer …………………………… km [2]

38. The coordinates of the point G are (1, 2) and the coordinates of point H are (7, -6).

Calculate

(a) the coordinates of the midpoint of the line segment GH,

(b) the length of the line segment GH.

25
26

Answer (a) ( , ) [2]

(b) …………………. units [2]

39. The diagram below shows a triangle S and a triangle T.


y

3
S T
2

x
-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7

Describe fully a transformation that maps triangle T onto triangle S.

Answer ………………………………

……………………………………………………………………………………… [2]
40. In the diagram, lines AB and CD are parallel.
Angle BAD = 380 and angle ABC = 430.

A B
380 430

p
C D

26
27

State, with a geometrical reason, the size of angle p.

Answer …………………………………………………………………..

…………………………………………………………………… [2]

41. A straight line passes through the points and .

(a) Find the equation of the line KL.

Answer (a) ……………………………. [2]

(b) Calculate the coordinates of the midpoint of the line KL.

Answer (b) ……………………………. [2]


.

27
28

42. Calculate the size of an exterior angle of a regular 15 sided polygon.

Answer ………………………………… [2]

43. The interior angles of a regular polygon are each 1600.


Calculate

(a) the size of each exterior angle,

Answer (a) …………………………….. [2]

(b) the number of sides of the polygon.

Answer (b) …………………………….. [2]

44. The coordinates of point P are and .


What are the coordinates of the point R?

Answer ………………………………… [2]

45. The size of each exterior angle of a regular polygon is 24°.


Calculate the size of each interior angle of the polygon.

Answer ………………………………… [2]

28

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