Question

three angle of a quadrilateral are equal and its fourth angle is a right angle find the measure of each​

Answer 1

ANSWER 》》

Let all the equal angels be a.

Sum of all angels of a quadrilateral=360°

a + a + a + 90° = 360

3a = 360 - 90

3a = 270

a = 270 ÷ 3

a = 90°.

So...measure of all angles of the quadrilateral is 90°.

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Answer 2

let us assume the three angles as x which are equal

Next the another angle is 90°

we know that

Sum of the angles in a quadrilateral is equal to 180°

so,

x+x+x+90°=180°

3x=180°-90°

3x=90°

x=30°

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