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The length and breadth of a rectangle are 12 cm and 9 cm, respectively. Its perimeter will be:
Question

The length and breadth of a rectangle are 12 cm and 9 cm, respectively. Its perimeter will be:

A.

6 cm

B.

21 cm

C.

42 cm

D.

10.5 cm

Correct option is C

Given:

Length = 12 cm

Breadth = 9 cm

Formula Used:

Perimeter of rectangle = 2 × (Length + Breadth)

Solution:

Perimeter of  rectangle = 2 × (12 + 9) = 2 × 21 = 42 cm

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