1) 6.6 cm

2) 11.3 cm

3)

2) 11.3 cm

3)

c) 77.5°

4)

5)

6) 6.8 cm

7) 6.7 cm

4)

*x*= 68° to 68.2°*y*= 88.7° or 88.9°5)

*p*= 18.8° to 19°*q*= 140.4° to 140.6°6) 6.8 cm

7) 6.7 cm

**Working**

**Questions**

1) What is the length of the side labelled

*x*? Give your answer to one decimal place.

2) What is the length of the side labelled

*y*? Give your answer to one decimal place3)

a) Write down the cosine formula.

b) Make cos

We have the triangle below.

a) Write down the cosine formula.

b) Make cos

*A*the subject of the formula.We have the triangle below.

c) Find the size of angle

4) Find the size of angle

*p*. Give your answer to one decimal place.4) Find the size of angle

*x*and*y*. Give your answer to one decimal place.5) Find the size of angle

*p*and*q*. Give your answer to one decimal place.6) Find the length of

*m*. Give your answer to one decimal place.7) Find the length of

*n*. Give your answer to one decimal place.