Question

Explain how you can determine, without measuring any angles, whether a quadrilateral is a rectangle. (image repeats caption)thank you ! :)

Answer 1

We can show that a quadrilateral is a rectangle without knowing that any of the angles.

1. First show that the quadrilateral is a parallelogram by any of the following:

a. We can do this by showing that diagonals bisect each other

b One pair of sides are both parallel and congruent

c both pairs of opposite sides are parallel

2.Then if the diagonals are congruent, the figure is a rectangle.