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Igcse h4 08c 03 Sine Rule

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168 views2 pages

Igcse h4 08c 03 Sine Rule

Uploaded by

Annanya Guha
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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For use only in the Aga Khan Academy August 2012

IGCSE-H4-08c-03_Sine_Rule
Sine Rule (Angles and Sides)
sin A sin B sin C
The Sine rule is written as  
a b c

1. Show that   51.9 and   50.4 (to 1dp) in the following triangles:
93
7.1

83mm 74mm

 62 
9.2

2. Find x in the following triangles (to 1dp):

(a) x (b)
x
7.8cm
49
13m
9.6cm 101

8m

(c) 95 (d) x


15m

7m
x 39
17m
11m

(e) (f)
28 x
35m
63mm
23
87m
x
43mm PTO

Copyright www.pgmaths.co.uk - For AS, A2 notes and IGCSE / GCSE worksheets 1


For use only in the Aga Khan Academy August 2012
IGCSE-H4-08c-03_Sine_Rule

3. Find x, y and z in the following triangles (give angles to 1dp and lengths to 3sf) – calculate
these in alphabetical order

(a) (b)
95 15m
52 3.07cm z

z y
x
x 17m

y
62

4. Find the area of the triangles (to 2sf) in question 3.

1
Area of triangle is ab sin C
2

Copyright www.pgmaths.co.uk - For AS, A2 notes and IGCSE / GCSE worksheets 2

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