Question

A sheet in the form of a right triangle with hypotheses 125m.If one of the side is 75cm find the cost of fencing it at the rate of 4.50per m

Answer 1

First, we have to find the side.

${(75)}^{2} + {(x)}^{2} = {(125)}^{2} \: m \\ \\ 5625 + {x}^{2} = 15625 \\ \\ {x}^{2} = 15625 - 5625 \\ \\ x = \sqrt{10000} = 100$

Perimeter = 125 m + 75 m + 100 m = 300

Cost of fencing 1 m = rs 4.50

Cost of fencing 300 m =

$4.50 \times 300 \\ \\ rs \: 1350 \: answer$