Question

find area of a triangle whose sides are in the ratio 4:5:7 and perimeter is 150 cm.​

Answer 1

Answer:

perimeter of triangle is sum of all sides

p = 150

a+b+c =150

4x+5x+7x=150

16x= 150

x= 9.375

let the base be 4x and height be 5x

area of = 1/2*b*h

= 1/2*37.5*46.875

= 878.90