Exams › SSC CGL (Prelims) › Maths

What is the perimeter of a rectangle with length 12 cm and breadth 8 cm?

1. 40 cm
2. 48 cm
3. 42 cm
4. 36 cm

Correct answer: 40 cm

Solution

The perimeter of a rectangle is given by $2(l+b)$. Substituting $l=12$ cm and $b=8$ cm gives $2(12+8)=2\times 20=40$ cm. So the correct answer is 40 cm.

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