Question

 In above triangle

a) 43 °

b) 23 °

c) 33° ​

Answer 1

Answer:

23°

Step-by-step explanation:

angle A + angle B +angle C =180°

angle A =58°

angle B=99°

angle C =?

let angle C = x°

58°+99°+x°=180°

157°+x=180°

x°=180°-157°

x=23°

Answer 2

Answer:

(b) 23°

Step-by-step explanation:

some of all angles of a triangle is 180°

a+b+c=180

58+99+c=180

157+c=180

c=180-157

c=23°