Question

The lenths of diagonals of a rhombus are 30cm and 40cm. Find side of rhombus

Answer 1

we know the diagonals of a rhombus bisect each other at right angles.

30/2 = 15
40/2 = 20

let each side be x

therefore

x^2 = 15^2 + 20^2
x^2= 225 + 400
x^2=625
x = 25

side of rhombus = 25 cm

Answer 2

Solution :-

We know that half the length of the diagonal and a side of a rhombus forms a right angled triangle.

So,

1/2 of 30 cm = 15 cm 

1/2 of 40 cm = 20 cm

Let the side of the rhombus be x cm

Then,

x² = 15² + 20²

x² = 225 + 400

x² = 625

x = √625

x = 25 cm

Hence, the side of the rhombus is 25 cm

Answer.