Question

In a quadrilateral three angles are equal and measure of fourth angle is 120°. find the measure of each angle​

Answer 1

Step-by-step explanation:

let the angle be x

sum of quadrilateral =360

X+X+X+120° =360

3X=360-120

3x=240°

x=240/3

x=80°

Answer 2

Step-by-step explanation:

let the angles be x

x+x+x+120⁰=360⁰(angle sum property,measure of quadrilateral is 360⁰)

3x = 360⁰-120⁰

x = 240⁰/3

x = 80⁰

Hence 80⁰ is the measure of each angle..

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