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Question

The figure formed by joining the midpoints of the adjacent sides of a rectangle of sides 8 cm and 6 cm is a
(a) rectangle of area 24 cm2
(b) square of area 24 cm2
(c) trapezium of area 24 cm2
(d) rhombus of area 24 cm2

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Solution

(d) rhombus of 24 cm2

We know that the figure formed by joining the midpoints of the adjacent sides of a rectangle is a rhombus.
So, PQRS is a rhombus and SQ and PR are its diagonals.
i.e., SQ = 8 cm and PR = 6 cm
ar(rhombus PQRS​) = 12 ×​ product of diagonals = 12 ×​ 8 ×​ 6 = 24 cm2

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