SOLUTION: If A (2,5), B(-3,10) and C (-5,2) are vertices of a triangle, find its area

Question 1115402: If A (2,5), B(-3,10) and C (-5,2) are vertices of a triangle, find its area
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

The area of a triangle with vertices (,), (,), (,) is:

In this case, A (,)=(,), B(,)=(,) and C (,)=(,), we have

A similar formula can be used to find the area of any polygon.
If you prefer not to use this formula, then another method is to use Distance Formula to find the length of each side:
side , , and
if
A (,)
B(,)
C (,)

since you have scalene triangle (no equal sides), you can also calculate the area from the lengths of all three sides using Heron's Formula
Calculate "s" (half of the triangles perimeter):

Then calculate the Area:

round it to whole number

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