Question

The area of a rhombus is 150 cm². The length of one of its diagonals is 10 cm. What is the length of the other diagonal ?

Answer 1

Let the length of second diagonal = d₁ cm

Then, \(\frac12\) x (d₁ x 10) = 150 ⇒ d₁ = \(\frac{150\times2}{10}\) = 30 cm.