Question

perimeter of a triangle is 300 m and its sides are in the ratio 3:5:7. Find the
area of the triangle.​

Answer 1

Answer:

let the ratios be 3x,5x,7x

a+b+c=perimeter of triangle

3x+5x+7x=300

15x=300

x=300/15

x=20.

3x=3×20=60

5x=5×20=100

7x=7×20=140

area is in the above photo