What is the formula of the area of a non right-angled triangle?
There’s lots of ways to figure out the area of a triangle. The simplest one is if you know the base and height of the triangle. If you know these then Area = 1/2 * base * height If you don’t know the height, but you know the length of all three sides, then we do like the person said above. We find the perimeter, which is known as S. S = (side 1 + side 2 + side 3) / 2 Then the Area = sqrt[ S * (S – side 1) * (S – side 2) * (S – side 3) ]. There are also other options, such as if you know the length of 2 sides, and the angle of the included angle. Hope it helps.
