Question

the lengh of the sides of a triangle are in the ratio 4:5:3 and its perimeter is 96cm. find its area.

Answer 1

Consider, length of sides is 4x, 5x and 3x.

Total length = 3x + 4x + 5x = 96

 12x = 96

x=8

So, sides would be 8(4), 8(5), 8(3) = 32, 40, 24

Answer 2

Consider, length of sides is 4x, 5x and 3x.

Total length = 3x + 4x + 5x = 96

 12x = 96

x=8

So, sides would be 8(4), 8(5), 8(3) = 32, 40, 24

area=640cm sq.