Question

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

Answer 1

Solution:

Given:

Perimeter of rectangular sheet = 100 cm

Length = 35 cm

We know,

Perimeter of rectangle = 2(Length + Breadth)

So,

2(Length + Breadth) = 100

( 35 + Breadth) = $\dfrac{100}{2}$

35 + Breadth = 50

Breadth = 50 - 35 = 15 cm

Area of rectangular sheet = Length × Breadth

= 35 × 15

= $525 cm^{2}$

Therefore,

Breadth = 15 cm

Area = $\bold{525 cm^{2}}$

Answer 2

Step-by-step explanation:

perimeter of rectangle=100cm=2(l+b)

length=35cm

breadth=?

100cm=2(35cm+?)

100cm÷2=35cm+?

50cm=35cm+?

50cm-35cm=Breadth

15cm=Breadth

Area=length × breadth

Area=35cm×15cm

Area=525 cmsquare

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