Question

In a quadrilateral, the sum of three angles is equal to twice the fourth angle. the measure of the fourth angle is​

Answer 1

Let A,B,C,D agle of given quadrilateral.

A+B+C =2D ....1

we know,

A+B+C+D= 360

2D+D=360

3D= 360

D= 120

fourth angle is 120 degree.

mark me the brailiest

Answer 2

Answer:

let the fourth angle be X

according to the question,the sum of three angles of the quadrilateral is equal to fourth angle l, therefore

2x+X= 360

3x=360

X=360/3=120

hence measurement of the fourth angle of the quadratic is 120⁰