PRACTICE QUESTIONS
CLASS VI: CHAPTER - 5
UNDERSTANDING ELEMENTARY SHAPES
1. How many millimeters make one centimetre?
2. Draw any line segment, say AB. Take any point C lying in between A and B. Measure the
lengths of AB, BC and AC. Is AB = AC + CB?
3. If A,B,C are three points on a line such that AB = 5 cm, BC = 3 cm and AC = 8 cm, which one
of them lies between the other two?
4. If B is the mid point of AC and C is the mid point of BD, where A,B,C,D lie on a straight line,
say why AB = CD?
5. Find the number of right angles turned through by the hour hand of a clock when it goes from
(a) 3 to 6 (b) 2 to 8 (c) 5 to 11 (d) 10 to 1 (e) 12 to 9 (f) 12 to 6
6. How many right angles do you make if you start facing
(a) south and turn clockwise to west?
(b) north and turn anti-clockwise to east?
(c) west and turn to west?
(d) south and turn to north?
7. The hour hand of a clock moves from 12 to 5. Is the revolution of the hour hand more than 1
right angle?
8. What does the angle made by the hour hand of the clock look like when it moves from 5 to 7. Is
the angle moved more than 1 right angle?
9. Draw the following and check the angle with your RA tester.
(a) going from 12 to 2 (b) from 6 to 7
(c) from 4 to 8 (d) from 2 to 5
10. Fill in the blanks with acute, obtuse, right or straight :
(a) An angle whose measure is less than that of a right angle is______.
(b) An angle whose measure is greater than that of a right angle is ______.
(c) An angle whose measure is the sum of the measures of two right angles is _____.
(d) When the sum of the measures of two angles is that of a right angle, then
each one of them is ______.
(e) When the sum of the measures of two angles is that of a straight angle and if one of them is
acute then the other should be _______.
11. Find the angle measure between the hands of the clock in each figure :
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12. Measure and classify each angle :
Angle Measure Type
AOB
AOC
BOC
DOC
DOA
DOB
13. Name the types of following triangles :
(a) Triangle with lengths of sides 7 cm, 8 cm and 9 cm.
(b) ABC with AB = 8.7 cm, AC = 7 cm and BC = 6 cm.
(c) PQR such that PQ = QR = PR = 5 cm.
(d) DEF with m D = 90°
(e) XYZ with m Y = 90° and XY = YZ.
(f) LMN with m L = 30°, m M= 70° and m N= 80°.
14. Complete the following table with Yes or No:
Opposite sides All sides Opposite Diagonals
Quadrilateral
Parallel Equal Equal angle equal Equal Perpendicular
Parallelogram
Rectangle
Square
Rhombus
Trapezium
15. Give reasons for the following :
(a) A square can be thought of as a special rectangle.
(b) A rectangle can be thought of as a special parallelogram.
(c) A square can be thought of as a special rhombus.
(d) Squares, rectangles, parallelograms are all quadrilaterals.
(e) Square is also a parallelogram.
16. Name each polygon.
17. Draw a rough sketch of a regular hexagon. Connecting any three of its vertices, draw a triangle.
Identify the type of the triangle you have drawn.
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18. Complete the following:
A cuboid looks like a rectangular box.
It has ______ faces.
Each face has ______ edges.
Each face has ______ corners (called vertices).
A cube is a cuboid whose edges are all of equal length.
It has ______ faces.
Each face has ______ edges.
Each face has ______ vertices.
A square pyramid has a square as its base.
Faces : _______
Edges : _______
Corners : _______
A triangular prism looks like the shape of a Kaleidoscope. It has triangles as its bases.
Faces : _______
Edges : _______
Corners : _______
A triangular pyramid has a triangle as its base. It is also known as a tetrahedron.
Faces : _______
Edges : _______
Corners : _______
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