Question

Calculate area of triangle using coordinates

Answer 1

if we have three points (x1,y1),(x2,y2),(x3,y3)
then area of triangle
1/2 [x1(y2-y3)+x2(y3-y1)+x3(y1-y2)]

Answer 2

Answer:

Step-by-step explanation:

The first formula most encounter to find the area of a triangle is A = 1⁄2bh. To use this formula, you need the measure of just one side of the triangle plus the altitude of the triangle (perpendicular to the base) drawn from that side. The triangle below has an area of A = 1⁄2(6)(4) = 12 square units.