Question

If three angles of a quadrilateral are each equal to 75,then find the fourth angle

Answer 1

Answer:

Angles of quadrilateral=75+75+75+x

360=75+75+75+x

360=225+x

x=360-225

x=135

Fourth angle is 135

Answer 2

The fourth angle is 135°

Step-by-step explanation:

Let fourth angle of quadrilateral be x

We are given that three angles of a quadrilateral are each equal to 75°

Sum of all angles of quadrilateral is 360°

So, 75°+75°+75°+x=360°

225°+x=360°

x=360°-225°

x=135°

Hence the fourth angle is 135°

#Learn more:

Three angles of a quadrilateral are equal and the fourth angle is 144 degree .find each of the equal angles of the quadrilateral

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