Posted by **Sarah** on Saturday, February 11, 2012 at 10:51pm.

the altitude of a triangle is 3m less than half its base. If the area of the triangle is 300 m^2 find the measure of the base.

- Algebra -
**PsyDAG**, Sunday, February 12, 2012 at 12:24pm
Area = 1/2 Height * Base

If base = x, then height = .5x-3

300 = 1/2x(.5x-3)

Solve for x.

- Algebra -
**Anonymous**, Tuesday, November 17, 2015 at 4:44am
300=1/2x(5x-3)

5x^2-3x-600=0

(using Quadratic formula)

x1=-10.659

x2=11.259

...we have no negative measure for the BASE so,

b = 11.3m

- Algebra -
**Ferdinand E.**, Tuesday, November 17, 2015 at 4:45am
300=1/2x(5x-3)

5x^2-3x-600=0

(using Quadratic formula)

x1=-10.659

x2=11.259

...we have no negative measure for the BASE so,

b = 11.3m

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