Question

name the quadrilateral whose diagonals are equal

Answer 1

Answer:

square

Step-by-step explanation:

hope it's helpful to you

Answer 2

Rectangle and Square

Step-by-step explanation:

A rectangle is quadrilateral with opposite sides equal and parallel to each other. each angle is a right angle.

Let's see,

In the figure ABCD is rectangle whose diagonals are divided into 4∆s viz.

∆ ABC,∆ ADC, ∆ ABC and ∆ CBD.

Since all the angle above are right angles.

So, AC²= AB²+BC² and,

BD²=CD²+BC².

But, AB= CD (opposite sides of the rectangle...)

AC²= BD²

AC= BD

So the diagonal of the rectangle are equal.

Again A Square is special rectangle whose all sides are equal to each other.

: diagonal of square are equal.