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In the figure shown, the area of PQR is 40. What is the area of QRS?

In the figure shown, the area of ImagePQR is 40. What is the area of ImageQRS?
(A)    10
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Nova Math - Problem Set J: Geometry

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Posted: 10/25/2012 01:17
Why is the area of the smaller triangle 1/2x5x6?
Contributor
 
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Posted: 10/25/2012 01:55
Mona, that's just the formula for
calculating the area of a triangle: 1/2 * base * height.
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