Posted by **mary** on Friday, January 14, 2011 at 3:49pm.

Given triangle XYZ with vertices

X(-2,0),Y(6,0), and Z(4,8), find the number of square units in its area.

- algebra -
**Reiny**, Friday, January 14, 2011 at 4:04pm
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

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