Question

In a quadrilateral ABCD, ∠D is equal to 150° and ∠A = ∠B = ∠C. Find ∠A, ∠B and ∠C.​

Answer 1

Answer:

Angle A, B and C are 70°.

Step-by-step explanation:

Since Angle A=B=C

let value of each be x

Angle A+B+C =3x

3x+ Angle D = 360 °

3x+150° =360 °

3x = 360- 150°

3x = 210°

x= 210° / 3

x = 70 °

therefore Angle A=70°

Angle B = 70°

Angle C = 70°