if three angles of a quadrilateral are 45 degree ,75 degree and 140 de – InterviewSolution

1.

if three angles of a quadrilateral are 45 degree ,75 degree and 140 degree, find the fourth angle

Answer»

Sum of angles of quadrilateral is 360.Let fourth angle be n

Then, 45 + 75 + 140 + n = 360n = 360 - 260 = 100

Fourth angle of quadrilateral = 100 degree

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