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Q.

The perimeter of a rectangular sheet is 100 cm. If the length is 35 cm, then what are its breadth (in cm)and area (in sq. cm)?


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a

15 cm, 525 sq. cm

b

35 cm, 525 sq. cm

c

20 cm, 100 sq. cm

d

70 cm, 300 sq. cm 

answer is A.

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Detailed Solution

Given, perimeter of the rectangular sheet is 100 cm.
Length of the rectangle is 35 cm.
We know that the perimeter of a rectangle=2(Length + Breadth).
So, 100=2(35 + Breadth)
Breadth=15cm
We know that the area of a rectangle=Length×Breadth.
So, Area=35×15.
=525
Therefore, the breadth and area of the rectangular sheet are 15cm, 525 sq. cm.
So, option 1 is correct.
 
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