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Constructions

Question

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In the figure below, D is mid-point of side BC of ΔABC. O is mid-point of AD. If area of ΔAOB = 8 cm², then area of ΔABC is:

16 cm²
24 cm²
32 cm²
4 cm²

Solution

C.

32 cm²

Some More Questions From Constructions Chapter

Prove that of all parallelograms of which the sides are given, the parallelogram which is a rectangle, has the greatest area.

In the figure, diagonals AC and BD of a trapezium ABCD with AB || CD intersect each other at O. Show that ar(Δ AOD) = ar(Δ BOC).

Parallelograms on the same base and between same parallels are equal in area. Prove this.

ABCD is a quadrilateral and BD is one of its diagonals as shown in figure. Show that ABCD is a parallelogram and find its area.

In the given figure, AB | | DC. Show that ar(BDE) = ar(ACED).

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