# The sides of a triangle are 12cm,35cm,37cm. Find its area by heron's formula.

2
by bhardwajshagun3

2015-10-25T17:57:39+05:30

### This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
let side a=12cm side b=35cm and side c=37cm
∴ semi perimeter,
= (a+b+c)/2
=12+35+37/2
=84/2
=42 cm
∴area of the triangle by heron's formula,
Δ=√s(s-a)(s-b)(s-c)
Δ=√42(42-12)(42-35)(42-37 )
Δ=√42*30*7*5
Δ=√2*3*7*7*5*2*3*5
Δ=2*3*5*7
Δ=210 cm^2
∴ total area of the triangle is= 210 cm^2
i hope that this will help u....................^_^
please mark it as the brainiest ^_^
:)
2015-10-25T18:01:34+05:30

### This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
S=a+b+c/2 S=12+35+37/2 84/2 S=42 Herons formula √s(s-a) (s-b ) (s-c) √ 42 (42-12) (42-35) (42-37) √42×30×7×5 √44100 210 answer