Question

Find the missing angles

Answer 1

`{b}^(o) = {34}^(o)`

Explanation:

Hint :

Sum of angles = 180°

Simplify :

`{115}^(o) + {31}^(o) + {b}^(o) = {180}^(o)`

`{146}^(o) + {b}^(o) = {180}^(o)`

`{b}^(o) = {180}^(o) - {146}^(o)`

`{b}^(o) = {34}^(o)`

Hope it is helpful...

Answer 2

b = 34°

Explanation:

b + 115° + 31° = 180°

b + 146° = 180

b = 180° - 146°

b = 34°