Question

in a quadrilateral ABCD, angle D is equal to 150c and Angle A = angle B = angle C. find angle A,B and C​

Answer 1

Answer:

Let Angle A = Angle B = Angle C = x

We know that,

Sum of all angles of a quadrilateral is 360°.

Therefore,

150 + x + x + x = 360

150 + 3x = 360

3x = 360 - 150

3x = 210

x = 210/3

x = 70

Therefore,

Angle A = Angle B = Angle C = 70°

Hope this helps!