Question

sides of a triangle are in the ratio 12:17:25 and its perimeter is 540cm.find its area

Answer 1

let the sides be 12x,17x and 25x respectively.
Then 12x+17x+25x=540cm.
54x=540
x=540/54
x=10cm

now,the sides are
12×10=120cm
17×10=170cm
25×10=250cm

the area of the triangle will be:

Answer 2

Answer:

Sides of the triangle are 120 cm, 170 cm, 250 cm

Step-by-step explanation:

The given sides are in the ratio 12:17:25

Let the side of a triangle be 12 x, 17 x and 25 x respectively.

Perimeter of a triangle = sum of three sides

so, 12 x+17 x+25 x = 540 cm.

54 x = 540

x = 540/54

x = 10 cm

so the value of three sides of triangle

12 x = 12×10= 120 cm

17 x= 17×10= 170 cm

25 x = 25×10=250 cm