Question

the measure of three angles of a quadrilateral are 100° ,68°,82°. find the measure of fourth angle​

Answer 1

Answer:

Let x be the fourth angle.

100+68+82+x=360 (Angle sum property of quadrilateral)

200+x=360

x=360-200

x=160

Answer 2

Given : the three angles of a quadrilateral are 100°, 68°, 82°

To Find : The fourth angle

Solution:

Sum of all four angles of a Quadrilateral is 360°

There Given angle are :

100°, 68°, 82°

Assume that Fourth Angle is x°

Hence

100° + 68° + 82° + x° = 360°

=>250° + x° = 360°

=>  x° = 360° - 250°

=> x° = 110°

The fourth angle is  110°

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