Question

In a quadrilateral ABCD, angle A = 150 degree and measure of angle B, C and D are equal. Find the measure of angle D.

Answer 1

Answer:

let the angle b,c,d be x,x,x                         [as the three angles are equal]

now angle sum property of quadrilateral= 360 degree

given;angle A=150 degree

therefore,

angle A+angleB+angle C+angle D=360 degree

150+3x=360

=>3x=210

=>x=70

Hence,angles are 150,70,70 and 70 degrees

Please Mark Brainliest

Answer 2

Answer:

D=70°

Step-by-step explanation:

sum of angles of quad.=360

take angle B C D =x

so equation comes

3x+150=360

3x=210

x=70

pls mark brainliest...