Question

The sides of a triangle are in the ratio of 25:17:12 and its perimeter is 1080cm find it area by using heron's formula

Answer 1

Answer:

20784cm^2

Step-by-step explanation:

so let the ration as 25x 17x and 12x

so perimeter is equal to

25x+17x+12x=1080

54x=1080

x=20     so the sides would be 500, 340, 240

so by herons formula the are would be

root(540(540-500)(540-340)(540-240))

12000*root(3)

=20784