Question

The perimeter of a rectangular sheet is 100 cm. If the length is 35 cm, find its breadth.
Also find the area.
of the
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Answer 1

Explanation:

see , perimeter of rectangular sheet = 2(l+b)

100= 2(l+b)

length = 35cm

100 = 2(35+b)

open the brackets

100= 75+2b

100-75= 2b

25 = 2b

b= 12.5 .................ans

area = lb

=[35* 12.5]

= 437.5 ....................ans

hope it will help you

Answer 2

15cm

Explanation:

2(l+b)= Perimeter of a rectangle

2(35+b)=100

70+2b=100

2b=100-70

2b=30

b=30/2

b=15

So breadth=15cm

Area= 35cm * 15cm

= 525cm2

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