Question

in the adjoining figure,if b degree = a degree+ c degree ,find b​

Answer 1

Answer:

90 degree

Step-by-step explanation:

we cannot calculate a and c separately, but they add upto 90. thus, b is 90 degree

Answer 2

Answer:

b°= 90°

Explanation-

b° = a° + c°. [Given]

a° + b° + c° = 180°. [Angles on a straight line are supplementary]

(a° + c°) + b° = 180°

b° + b° = 180°

2b° = 180°

b° = 90°