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Mathematics 7 Online
OpenStudy (anonymous):

What is the height of the triangle if the area is thirty-five square meters? PIC BELOW A triangle with a base labeled fourteen meters and a second side labeled fifteen meters. A dotted line extends from the vertex downward and perpendicular to the base. This dotted line is not labeled. a. 5 meters b.6 meters c.twenty meters d.twenty-one meters

OpenStudy (anonymous):

OpenStudy (phi):

do you know the formula for the area of a triangle ?

OpenStudy (anonymous):

NO

OpenStudy (phi):

this shows you the formula http://www.mathsisfun.com/area.html can you find it ?

OpenStudy (anonymous):

YES

OpenStudy (anonymous):

IS IT C

OpenStudy (anonymous):

you know that to find the area of a triangle, you need its height, and from your diagram, you do not have its height......

OpenStudy (anonymous):

......so you need to find its height using Pythagoras Theorem.

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