Question

In a quadrilateral one angle is 120 deegrees . The remaining three angles are equal. Find the measures of these three angles.​

Answer 1

Answer:

let the angle be x

remaining three are equal

so 3x

120+3x=360

3x=360-120

3x=240

x=240/3

x=80

Answer 2

Step-by-step explanation:

Let the three angles be 3x

then

A+B+C+D=360 Degree

120+3x=360 degree

3x=240 degee

x=80 degree

Therefore the other three angles are 80 degree