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Find the area of a rhombus whose diagonals are 3 cm, 7 cm is …………….. sq. cms.  A) 10.5 

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Find the area of a rhombus whose diagonals are 3 cm, 7 cm is …………….. sq. cms. 

A) 10.5 

B) 21 

C) 10 

D) 14

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Correct option is A) 10.5

Diagonals of rhombus are d1 = 3 cm and d2 = 7 cm

\(\therefore\) Area of rhombus = 1/2 d1d2

= 1/2 x 3 x 7 = 21/2 = 10.5 cm2

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