Question

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

Answer 1

Answer:

sum of all angles of quadrilateral = 360 degree

A+B+C+150= 360

transpose 150

A+B+C=360-150

A+B+C= 210

now 210 ÷3

210÷3 = 70

hence; A=70,B=70,C= 70

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Step-by-step explanation:

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Answer 2

A=x

B=x

C=x

D=150°

Sum of angles in quadrilateral is 360°

x+x+x+150°=360°

3x=360°-150°

3x=210°

x=210°/3

x=70°. Ans

So,A=70°,B=70°,C=70°,D=150°.