Question

How do I measure this and work out the answer?

Answer 1

see explanation

Explanation:

(a)

draw a vertical line through A ( representing the North line N )

Then use your protractor to measure the angle between N and B

(b)

the measure of A from B , again from the north line N through B is by parallel line geometry

the sum of 180° + measure of angle from B to A , measured from part(a)