Question

Perimeter of triangle is 450cm and its sides are in ratio13:12:5find its area

Answer 1

Let the sides be 13x, 12x and 5x respectively.
Perimeter of triangle=Side+side+side
13x+12x+5x=450
30x=450x=450/30
=15
13x=13*15=195cm
12x=12*15=180cm
5x=5*15=75cm
Now, Area=side*side*side
195*180*75=2632500cm

Answer 2

Answer-:

Let be sides of triangle 13x, 12x, 5x

Perimeter of triangle= 13x+12x+5x= 450cm

=> 30x= 450

=> x= 450/30

=> x= 15cm

13x= 15×13= 195

12x= 15×12=180

5x= 15×5=75

Now,

The area of triangle

195×180×75=2632500cm^2

Thanks ____:)))