Pythagoras TheoremExampleFor each of the following right angled triangles find the length of the lettered side, giving your answers to 2 decimal places.(i)

x5 cm

9 cm

y14 cm

15 cm

(ii)

c

8 cm

23 cm

(iii)

m

17 cm

29 cm(iv)

y

14 cm

10 cm

(v)

b

36 cm

12 cm

(v)

e

4.8 m

5.9 m

(vi)

ExampleIn triangle ABC, angle B = 90⁰ AB = 7cm and AC = 11cm. Work out the length of BC, giving your answer correct to 1 decimal place.

ExampleWork out the length of NM in the triangle drawn below.

48 mm

L

M

N 22 mm

AQA June 2003 GCSE PaperA support for a flagpole is attached at a height of 3m and is fixed to the ground at a distance of 1.2m from the base.

Calculate the length of the support (marked x on the diagram).

3m

1.2m

x