Question

find the missing angles in a ​

Answer 1

Answer:

it's too simple

Step-by-step explanation:

you must know it.

Answer 2

Answer:

Angle Sum Property of a triangle states that the sum of all interior angles of a triangle is 180°

(1) ∠A = 80°

∠B = 50°

∠C = x

x + 50° + 80° = 180° (Angle Sum Property)

x + 130° = 180°

x = 180° - 130°

x = 50°

Hence, ∠C = 50°

(2) ∠M = 90° (As given in figure)

∠N = 40°

∠O = z

z + 40° + 90° = 180° (Angle Sum Property)

z + 130° = 180°

z = 180° - 130°

z = 50°

Hence, ∠O = 50°

(3) ∠P = 110°

∠Q = 40°

∠R = y

y + 110° + 40° = 180° (Angle Sum Property)

y + 150° = 180°

y = 180° - 150°

y = 30°

Hence, ∠R = 30°