Question:If the area of a rhombus is 15 sq. cm and the length of one of its diagonals is 5 cm, then the length of the other diagonal is : 

A 3  cm 
B 5 cm 
C 6 cm 
D 7 cm 

+ Answer
C 

+ Explanation
Area` = 1/2 xx `(product of diagonals)

`:. 1/2 xx 5 xx x = 15 => x = (15 xx 2/5)`

     `= 6 cm`

+ Report

Irin Moni

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