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Q.

The diagonal of a quadrilateral is 10 cm. If the perpendiculars drawn on it from opposite vertices are 5 cm and 7 cm, then its area is

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a

70 $c m 2$

b

60 $c m 2$

c

35 $c m 2$

d

40 $c m 2$

answer is C.

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Detailed Solution

Area of quadrilateral = $\frac{1}{2} (h_{1} + h_{2}) d$

$= \frac{1}{2} (5 + 7) 10 = 60 c m^{2}$

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