posted by mary .
Given triangle XYZ with vertices
X(-2,0),Y(6,0), and Z(4,8), find the number of square units in its area.
Since two points lie on the x-axis, this becomes an easy question
Consider XY as the base, its length would be 8
Z is 8 units above the x-axis, so the height is 8
Area = (1/2)base x height
= (1/2)(8)(8) = 32