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The area of a rectangle is 640 m^(2). T...

The area of a rectangle is 640 `m^(2)`. Taking its length as x m, find, in term of x, the width of the rectangle. If the perimeter of the rectangle is 104 m, find its dimensions.

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The correct Answer is:
Width = `640/(x)`m; 32 m and 20 m
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ICSE-AREA AND PERIMETER OF PLANE FIGURES-EXERCISE 20(B)
  1. The figure given below shows the cross-section of a concrete structure...

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  2. Calculate the area of the figure given below : which is not drwn to sc...

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  3. The following diagram shows a pentagonal field ABCDE in whhich the len...

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  4. A footpath of uniform width runs all around the outside of a rectangul...

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  5. A wire when bent in the form of a square encloses an area of 484 m^(2...

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  6. A wire when bent in the form of a square encloses an area of 484 m^(2...

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  7. For each terapezium given below, find its area.

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  8. For each trapezium given below, find its area.

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  9. For each trapezium given below, find its area.

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  10. For each trapezium given below, find its area.

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  11. The perimeter of a rectangular board is 70 cm. Taking its length as x ...

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  12. The area of a rectangle is 640 m^(2). Taking its length as x m, find,...

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  13. The length of a rectangle is twice the side of a square and its width ...

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  14. ABCD is a square with each side 12 cm. P is a point on BC such that ar...

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  15. A rectangular plot of land measures 45mxx30m. A boundary wall of heigh...

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  16. A wire when bent in the form of a square encloses an area = 576 cm^(2)...

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  17. A wire when bent in the form of a square encloses an area = 576 cm^(2)...

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  18. The area of a parallelogram is y cm^(2) and its height is h cm. The ba...

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  19. The distance between parallel sides of a trapezium is 15 cm and the le...

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  20. The diagonal of a rectangular plot is 34 m and its perimeter is 92 m. ...

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