How do you use Heron's formula to find the area of a triangle with sides of lengths #3 #, #7 #, and #7 #?
1 Answer
Feb 28, 2016
The area is
Explanation:
Heron's formula is
The semi-perimeter is half the perimeter, with the formula
Let
Solution
Determine semi-perimeter, then substitute known values into Heron's formula and solve.