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Chapter 11: Q4. (page 425)

The perimeter of a square is28cm.What is the area?

Short Answer

Expert verified

The area of the square is 49cm2

Step by step solution

01

Step 1. Given information.

Perimeter of the square isP=28cm .

02

Step 2. Concept  Used.

If is the side of the square

Then, the area of the square isA=(side)2

Perimeter of the square:

P=4脳(side)

03

Step 3. Let’s calculate the area of the square.

Put the value of perimeter into the formula and find the side length.

Perimeter of the square:

28=4脳(s)s=284s=7cm

Area of the square:

AInvalid <m:msup> element==49cm2

Therefore, the area of the square is 49cm2

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