Question

if 3 angle of a quadrilateral is 75 what is the 4 th angle

Answer 1

We know that, sum of all the 1 angles of a quadrilateral is 360°. Hence, the fourth angle of a quadrilateral is 120°.

Answer 2

Answer:

as we know sum of all angles of quadrilateral is 360

so...

360 - 75 = 285

therefore 4th angle is 285 degree

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