Question

14. Find the area of a rhombus in which each side is 10 cm and one of whose diagonals is 12 cm.​

Answer 1

Area of rhombus =

1/2× diagonal √4 × side^2 - diagonal ^2

That is why,

Area = 1/2 × 12 √ 4 × 10^2 - 12^2

= 6 √400 - 144

= 6 √256

= 6 × 16

= 96 cm^2

Hope it helps