Question

Prove that all angle of square is 90 degree i.e right angle

Answer 1

Answer:

∴ ABCD is a square. ∴ ∠ABD = ∠CDB | C.P.C.T. ... Show that if the diagonals of a quadrilateral are equal and bisect each other at right angles, then it is a square. Given: The diagonals AC and BD of a quadrilateral ABCD are equal and bisect each other at right angles

Answer 2

Answer:

The interior sum of angles inside a square is 360 degrees.

Step-by-step explanation:

The interior sum of angles inside a square is 360 degrees.

Since we know all angles inside the square are equal..we can divide it by 4!

(since there are 4 angles.)

360/4=90.