Approximate the area of triangle ABC. (Round your answer to one decimal place.)

Question

a = 15.0,     b = 70.0,     c = 60.0.

Answer 1

You can use Herons formula: A = sqrt(p(p - a)(p - b)(p - C)), where p =(a + b + C)/2 = (15 + 70 + 60)/2 = 72.5

So, A = (72.5(72.5 - 15)(72.5 - 70)(72.5 - 60))^1/2 = 360.9

Answer 2