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If the length of a diagonal of a rectangle of length 16 cm is 20 cm, then its area is
(a)`192\ c m^2`
(b) `320\ c m^2`
(c)`160\ c m^2`
(d) `156\ c m^2`

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RD SHARMA ENGLISH-MENSURATION-1-All Questions
  1. In Fig.38, A B C D\ and\ P Q R C are square such that A D=22\ c m\ a ...

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  2. The length and breadth of a rectangle are (3x+4)c m and (4x-13)c m res...

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  3. If the length of a diagonal of a rectangle of length 16 cm is 20 cm,...

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  4. The area of a rectangle 144 cm long is same as that of a square of s...

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  5. The length and breadth of a rectangular field are in the ratio 5:3\ ...

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  6. The length of a rectangular field is thrice its breadth and its peri...

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  7. If the diagonal of a rectangle is 17 cm and its perimeter is 46 cm, ...

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  8. The length and breadth of a rectangular field are 4 m and 3 m respec...

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  9. The area of a parallelogram is 100\ c m^2dot If the base is 25 cm, the...

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  10. The base of a parallelogram is twice its height. If its area is 512\...

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  11. The lengths of the diagonals of a rhombus are 36 cm and 22.5 cm. Its...

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  12. The length of the diagonals of a rhombus is 16 cm. If its area is 96...

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  13. The lengths of the diagonals of a rhombus are 8 cm and 14 cm. The ar...

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  14. The length of a rectangle is 8 cm more than the breadth. If the peri...

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  15. The length of a rectangle is 8 cm more than the breadth. If the peri...

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  16. The area of a rhombus is 119 c m^2 and its perimeter is 56 cm. The hei...

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  17. Each side of an equilateral triangle is 8 cm. Its area is (a)16sqrt...

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  18. The area of an equilateral triangle is 4sqrt(3)\ c m^2dot\ The length...

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  19. The height of an equilateral triangle is sqrt(6)\ c mdot Its area is ...

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  20. If A is the area an equilateral triangle of height h , then (a)A=sq...

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