Question

The area of a rhombus is 84cm² and one diagonal is 12cm . Find the other diagonal.

Answer 1

as you know that the formula for area of rhombus is=1/2*d1*d2
therefore.
84=1/2*12*d2
d2=84/6
d2=14cm
hence the second diagonal of Rhombus will be 14cm.

Answer 2

let other diagonal be x
area of rhombus = 1/2 × (product of diagonals)
=> 84 cm² = 1/2 × 12 × x
=> 84 cm² = 6×x
=> 84/6 = x

=> 14 cm = x


hope this helps