Question

three angles of a quatrilateral are 75 degree 90 degree 75 degree the fourth angle is

Answer 1

Given that,

First angle = 75

Second angle = 90

Third angle = 75

Sum of the angles of quadrilateral = 360.

Let the fourth angle be 'x'

75 + 90 + 75 + x = 360

240 + x = 360

x = 360 - 240

x = 120

Therefore ,

fourth angle = 120 degrees

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