Question

the longest side of a garden which is in form of a right angle triangle is 125 m .if one of the sides is 75m , find the cost of watering the garden at Rs . 1.5 per meter square

Answer 1

as we know in a right angle triangle hipotenous is the longest side and its square is equal to the sum of the square of other two sides.
125×125=75×75+unknown side×unknown side
15625=5625+ab×ab(unknown side)