Question

The sides of the triangle are in the ratio 3:5:7 and its perimeter is 300m. find its area. 

Answer 1

let the sides=3x,5x and 7x
so, 3x+5x+7x=300
15x=300
x=300÷15=20
first side = 3×20 =60m
second side=5×20=100m
third side=7×20=140m
now find area by herons formula.
hope this helps.
if you understood then please mark as brainliest.

Answer 2

Let the sides=3x,5x and 7x

so, 3x+5x+7x=300

15x=300

x=300÷15=20

first side = 3×20 =60m

second side=5×20=100m

third side=7×20=140m

now find area by herons formula.

hope this helps.

if you understood then please mark as brainliest.