Question

A=1/2b a & b are supplementary

Answer 1

Step-by-step explanation:

If A = 1/2 B

Then B = 2A

As A and B are supplements

A + B = 180

As B = 2A

A + 2A = 180

3A = 180

A = 180/3

= 60

B = 2A = 2× 60 = 120

or

As B is the supplement it equals to 180 - A

= 180 - 60

= 120