Question

One angle of a quadrilateral is 90° and all other angles are equal; find each equal angle.

Answer 1

90º I guess bcz the opp angles are equal of the given quadrilateral

Answer 2

Answer: angle sum property of quadilateral: <1+<2+<3+<4=360°

90°+<2+<3+<4=360°

Since all the other 3 angles are equal

Therefore

90°+<2+<2+<2=360°

360-90=3<2

270/3=<2

90°=<2,<3,<4