Question

if sides of a triangle are in the ratio 4: 2: 5 and perimeter is 240 metres find the area of a triangle​

Answer 1

Answer:

let the common multiple = x

let the sides of ∆ = 4x, 2x ,5x

P = 240m

so...

4x + 2x + 5x = 240

11x = 240

x= 240/11

now find all the other sides by simply putting the value of x