Question

Length of sides of a triangle are in ratio 2 : 3 : 4 and its perimeter is 54cm then find

Answer 1

let the number be x
2x +3x+4x=54
9x=54
x=6
2*6=12=first side
3*6=18=second side
4*6=24=third side

Answer 2

Let the constant of the ratio be x
atq(according to question)
2x+3x+4x=54 cm
9x=54 cm.
x=6cm

thus the sides are 12 18 and 24 cm. respectively.
area=12*18*24=5184 sq cm