Question

the length of three sides of a triangular field of our village are 52 m,56m,and 69m respectively calculate how much cost will be for reparing the field at the rate of rs 12 per square meter?​

Answer 1

Answer:

s=2a+b+c

By Heron's formula,Area of the triangle=s(s−a)(s−b)(s−c)

Where a,b,c are sides of the triangle.

s=256+60+52=84

Area of the triangle=84(84−56)(84−60)(84−52)=1806336=1344cm2