Question

The measures of the three angle of a quadrilateral are 65 degree 75 degree and 85 degree the measures of fourth angle is

Answer 1

Answer:

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Answer 2

Answer:

135

Step-by-step explanation:

let the angle be x

We know that the sum of all angles of a quadrilateral

is 360°.

We have the measure of three angles as 75°,65°,85°

according to the question:

x+ 65+ 75 + 85= 360

x + 225 = 360

x = 360 - 225

x = 135°

so the value of fourth angle is 135 °