Question

Three angles of a quadrilateral are equal. If the fourth angle is 69º, find the measure of
equal angles.​

Answer 1

Answer:

x+x+x+69°=360

3x+69°=360

3x=360-69°

3x=291

$x = \frac{291}{3}$

x=97°

so all three angles are 97° because all three angles are equals.....