Find the area of the triangle with sides 12ft, 22ft, and 30ft

Question

it is math equation

Answer 1

Per Heron's formula:

    A = √( 32(32-12)(32-22)(32-30) )
    A = √12800
    A = 80√2
    A = 113.14 ft²

Answer 2

you can apply the formula A = square root (s*(s-a)(s-b)*(s-c)), where a,b,c are the length of each side, and s = (a+b+c)/2

 

therefore, a=12, b=22, c=30, s=32

therefore, A = square root (32 * (32-12)*(32-20)*(32-30)) = 132.935