Question

Sides of triangle are in the ratio 12:17:25 and its perimeter is 540 cm. Find its area.​

Answer 1

Step-by-step explanation:

first take 12x + 17 x+ 25 x= 540cm

x=10

side a= 12*10=120

b=17*10=170

c= 25*10=250

then apply heron formula

Answer 2

Given

side of triangle = 12:17:25

perimeter = 540cm

let the ratio ne x

According to question

12x + 17x + 25x = 540

54x = 540

x = 10

so side of triangle is

120 ,170 and 250

Now

s = 540/2= 270

using herones formula

a = sqrt s{ ( s -a) + (s- b) + (s-c)}

a = sqrt270{150+100+20)

a = sqrt270^2)

a = 270cm^2