Question

Find the area of the rhombus whose side is 12cm and altitude is 7cm. If one of its diagonal is 14 cm long find its on other diagonal

Answer 1

one side is 12 cm and we know that altitude is 7 cm from the mid point now using Pythagorean theorem we can determine the half of the other diagonal means
$\sqrt{ {12}^{2} - {7}^{2} } = 9.75$
if 9.75cm is the half of the other diagonal the length of the diagonal will be twice of it means 9.75+9.75 means 19.5cm