Question

what r conditions which r required to prove that quadilateral is rectangle

Answer 1

a. the opposite side should be equal
b. each angle should be 90 degree.
c. diagonals should be equal.

Answer 2

conditions which are required to prove that quadrilateral is triangle are

1) opposite sides are equal

2) sides make angle of 90° at the vertices

3) diagonals equally bisect each other and both diagonals are of same length.

formula to calculate perimeter and area are

area--> l X b -------( here l= length, b= breadth)

perimeter --> 2(l+b) -----( l= length, b= breadth)