If the area of a rectangle of length = 3 m and width = 7 m is $21 m^{2},$ then what is the volume of a rectangular block having length = 3 m, width = 7 m and height = 1 m?

$21 m^{3}$

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$22 m^{3}$

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$31 m^{3}$

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$23 m^{3}$

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Solution

The correct option is A
$21 m^{3}$

Since the length and width of both the rectangle and the rectangular block are the same, we can get the volume by multiplying area with height.

Volume $(V) = area \times height$

Volume $(V) = 21 \times 1 = 21 m^{3}$

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If the area of a rectangle of length = 3 m and width = 7 m is 21m2, then what is the volume of a rectangular block having length = 3 m, width = 7 m and height = 1 m?

The correct option is A 21 m3 Since the length and width of both the rectangle and the rectangular block are the same, we can get the volume by multiplying area with height. Volume (V) = area×height Volume (V) = 21×1=21 m3

If the area of a rectangle of length = 3 m and width = 7 m is $21 m^{2},$ then what is the volume of a rectangular block having length = 3 m, width = 7 m and height = 1 m?

The correct option is A
$21 m^{3}$

Since the length and width of both the rectangle and the rectangular block are the same, we can get the volume by multiplying area with height.

Volume $(V) = area \times height$

Volume $(V) = 21 \times 1 = 21 m^{3}$