Question

Essential ICSE Mathematics for Class o
10. A rectangular piece of paper has a length of 14 cm and a breadth of 12 cm. A square piece
of paper of perimeter 24 cm is cut off from it. Find the area of the piece of paper left.
ni sir 7 m 50 m 4 m is to be covered by rectangular tiles of size​

Answer 1

Answer:

132 cm

Step-by-step explanation:

Area of rect= l × b = 12 × 14 cm = 168 cm square.

Now Area of square= 6 × 6 cm = 36 cm square

therefore remaining area= 168 - 36 = 132 cm

Answer 2

Answer:

132 cm is the area of the piece of paper left.

Step-by-step explanation:

Question:

A rectangular piece of paper has a length of 14 cm and a breadth of 12 cm. A square piece of paper of perimeter 24 cm is cut off from it. Find the area of the piece of paper left.

Given:

• Length of the rectangular piece of paper (l) = 14 cm

• Breadth of the rectangular piece of paper (b) = 12 cm

• Perimeter of the square = 24 cm

Method to solve:

First, we need to find the area of the rectangular piece of paper.

Area = length * breadth

⇒ Area = 14 cm * 12 cm

⇒ Area = 168 cm²

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Now, we need to find the area of the square. But to do that, we first need to find the measure of each side of the square.

Perimeter = 4 * Side

⇒ 24 cm = 4 * Side

⇒ Side = 24/4 cm

⇒ Side = 6 cm

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Now, we can find the area of the square.

Area = (Side)²

⇒ Area = 6²

⇒ Area = 36 cm

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To find the area of the piece of paper left, we need to subtract the area of the square from the area of the rectangle, since it was removed.

⇒ 168 cm - 36 cm

⇒ 132 cm

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Hope it helps!