algebra
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 xaxis, this becomes an easy question
Consider XY as the base, its length would be 8
Z is 8 units above the xaxis, so the height is 8
Area = (1/2)base x height
= (1/2)(8)(8) = 32
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