Calculate the perimeter of following rectangle.

40 cm

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0.4 m

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400 cm

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4 m

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Solution

The correct options are
A
40 cm

B
0.4 m

Perimeter of a rectangle (P) = 2 (l + b)

where, l = 12 cm, b = 8 cm [Given]

Therefore, P = 2 (12 + 8) = 2 (20) = 40 cm

Also, 40 cm = 0.4 m [ $∵$ 1 cm = 0.01 m]

Suggest Corrections

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