Question

Find the missing angles

Answer 1

Answer:

b = 34°

Step-by-step explanation:

b + 115° + 31° = 180°

b + 146° = 180

b = 180° - 146°

b = 34°

Answer 2

Answer:

${b}^{o} = {34}^{o}$

Step-by-step 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...