Question

Find the area of rhombus in which a b equal to 5 cm and ac equal to 8 cm

Answer 1

diagonals of RHOMBUS bisect at right angle.

In triangle ABO,

so BO^2 = AB^2 - AO^2
= 5^2-4^2
= 25-16
=9

SO BO = 3

SO. BD = 2×3 = 6

NOW
AREA = 1/2 D1 × D2

= 1/2 × 8 × 6

=48/2

=24 cm2