Heron’s formula: area = square root 5(5-a)(5-b)(5-c) what is the area of triangle dfg? round to the nearest whole square unit. 27 square units 38 square units 364 square units 728 square units

To do this problem, you will need to know the side lengths of the triangle. If you have those, just plug them in for a, b, and c and evaluate the square root.

Here is an example. If the sides are 3, 4, 5.
It would be:



The 6 is in the formula because it is the semi-perimeter (half).