Question

2. The perimeter of a rectangular sheet is 120 cm. If the length is 25 cm, find its breadth
Also find the area.​

Answer 1

Answer:

The perimeter of a rectangular sheet =120 cm

length=25 cm

Therefore,

2(length+breadth)=120

(25+breadth)=60

breadth=35 cm

Hence, this is the answer.

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Answer 2

Answer :

• Breadth of rectangle = 35 cm
• Area of rectangle = 875 cm²

Given :

• Perimeter of rectangular sheet = 120 cm

• Length of the rectangular sheet = 25 cm

To calculate :

• Breadth

• Area

Calculation :

• Calculating breadth :

As we know that,

• Perimeter of rectangle = 2l + 2b

Where,

l = Length

b = Breadth

→ 120 cm = 2(25) cm + 2(b) cm

→ 120 cm = 50 cm + 2b cm

→ 120 cm - 50 cm = 2b cm

→ 70 cm = 2b cm

→ b = $\sf{\dfrac{70}{2} }$ cm

→ b = 35 cm

Hence,

• Breadth is 35 cm.

• Calculating area :

As we know that,

• Area of rectangle = length × breadth

→ Area of rectangle = 25 cm × 35 cm

→ Area of rectangle = 875 cm²

Hence,

• Area of rectangle is 875 cm².