Question

the lengths of the sides of a triangle are in the ratio 4 : 5 : 6 and its perimeter is 60 cm. find its area correct to 4 significant figures.

Answer 1

sides are 4x 5x and 6x where x is a constant
according to condition,
4x+5x+6x=15x=60
x=4

4x. 16
5x. 20
6x 24

area is in the picture.

Answer 2

this is the right answer of the question