Question

Find the area of this triangle..

Answer 1

59.624411 or round it up to 60

Answer 2

Explanation:

For this problem, we have to use Heron's Formula.

S= (a + b + c)

over 2

And then √S( S-a) (S-b) (S-c)

That's the formula, now to plug in the numbers.

S= 12+12+21.2

over 2

that equals 45.2/ 2= 22.6'

Now we found s, so we can plug in the second step of the formula...

√22.6 ( 22.6 - 12 ) ( 22.6 - 12 ) ( 22.6 - 21.2 )

This equals √ 22.6 (10.6) (10.6) (1.4)

and that equals...

59.624411 = or rounded it up to 60.