Subject
Quantitative Aptitude
Topic
Mensuration
If area of a rhombus is 225 cm2. One of the diagonal is half of the other diagonal. The sum of the diagonals would be:
If area of a rhombus is 225 cm2. One of the diagonal is half of the other diagonal. The sum of the diagonals would be:
ক)
45 cmখ)
48 cmগ)
36 cmঘ)
144 cmঙ)
None of theseExplanation
Let first diagonal is x cm, then the other one would be 2x cm ]Now, formula Area of a rhombus = (1/2)×product of its diagonals \eqalign{ & \Rightarrow 225 = \frac{1}{2} \times 2x \times x \cr & \Rightarrow {x^2} = 225c{m^2} \cr & \Rightarrow x = 15cm \cr} Then the diagonals would be 15 cm and 30 cm ∴ Sum of the diagonals = 45 cmRelated questions
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