Question

In this lesson, you learned new formulas to find the area of a triangle. How are these formulas different from the commonly known A = ½bh? What would be the use of each formula? Would you use radians in any of the formulas? Give examples.

Answer 1

Aside from the conventional formula for triangle, A=½bh which is only applicable to problems where the base and height are already given and the triangle is a right triangle having a degree of 90. There are some formulas in getting the area of a triangle:

>Given three sides of the triangle, use Heron's Formula
A= sqrt(s(s-a)(s-b)(s-c))
s= (a+b+c)/2
>Given two sides with an included angle
Area = 1/2 ab sin (tetha)
tethat should be in degrees