Maths Class 6 Mensuration

Asked by SAGARIKA · Delhi Public School Gandhidham

What will be the length of a rectangle whose perimeter is 52, breadth is 12 and area is 168 cm².

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Answer: B. 14 cm

Perimeter=2(l+b)
52=2(l+12)
52÷2=l+12
26=l+12
26-12=l
14=l
Now to check if our answer is correct we would check it by the help of the area which is 168cm².
14×12=168
This, our answer is correct.

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