Question

three angles of a quadrilateral are equal. fourth angles is of measure 120 Degree .what is the measure of equal angles.

Answer 1

the sum of remaining angles will be 360 - 120=240.
the remaining angles are equal. therefore measure of each angle will be 240÷3=80.

Answer 2

HEY HERE IS YOUR ANSWER !!!!

WE KNOW THAT


Sum of quadrilateral = 360

In quadrilateral three angles are equal
Let three anlge x

So
x+x+x+120 = 360
3x+120 = 360
3x = 240
x = 80

So remaining three angles àre 80 degree.


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