Question

the perimeter of a rectangular sheet is 100 cm if the length is 35 cm find its breadth.??
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Answer 1

Step-by-step explanation:

$perimeter = 2(l + b) \\ 100 =2 \times 35 + 2b \\ 100 =70 + 2b \\ b = 100 - 70 \div 2 \\ b = 30 \div 2 \\ b = 15 cm$

The breadth is 15 cm

Answer 2

Answer:

Question:-

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

To find:-

• The breadth of a rectangular sheet
• Area of a rectangular sheet

Given as,

• Perimeter of a rectangular sheet = 100cm
• Length of a rectangular sheet = 35cm

Solution:-

• Perimeter = 100cm
• Length = 35cm
• Breadth = ?
• Area = ?

 ☆ Perimeter = 2(l + b)

 ━☆ 100 = 2(35 + b)

 ━☆ $\rm \frac{100}{2} = 35+B$

 ━☆ 50 = 35 + b

 ━☆ b = 50 - 35

 ━☆ b = 15cm

Area = $\rm length \times breadth$

        = $35 \times 15$

       = $525 cm^{2}$