One of the diagonals of a rhombus is double the other diagonal. Its area is 25 sq. cm. The sum of the diagonal is ?
A. 10 cm
B. 12 cm
C. 15 cm
D. 16 cm
Answer: Option C
Solution(By Examveda Team)
$$\eqalign{ & \Leftrightarrow \frac{1}{2}{d_1} \times 2{d_1} = 25 \cr & \Leftrightarrow d_1^2 = 25 \cr & \Leftrightarrow {d_1} = 5 \cr} $$∴ Sum of lengths of diagonals = (5 + 10) cm = 15 cm
Related Questions on Area
A. 15360 m2
B. 153600 m2
C. 30720 m2
D. 307200 m2
E. None of these
A. 2%
B. 2.02%
C. 4%
D. 4.04%
E. None of these
A. 16 cm
B. 18 cm
C. 24 cm
D. Data inadequate
E. None of these
The percentage increase in the area of a rectangle, if each of its sides is increased by 20% is:
A. 40%
B. 42%
C. 44%
D. 46%
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