If the mid-points of the sides of a triangle are (1,1),(2,4) and (3,5), then the area (in sq. units) of the triangle is
A
5
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B
4
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C
9
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D
10
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Solution
The correct option is B4 Let the mid-points be P(1,1),Q(2,4) and R(3,5)
We know that,
Area of triangle formed by mid-points =14× Area of original triangle.