1.

in a quadrilateral 2 angles are equal,one angle=120°, another angle =100° find the measure of the equal angle​

Answer»

Step-by-step EXPLANATION:

in a quadrilateral sum of all angles is= 360°

let the unknown angle be X.

As PER Question,

120°+100°+x+x=360°

220°+2x=360°

2x=140°

x=70° .....Ans.

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