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Chapter 3: Q.3 (page 164)

Find the perimeter of the square.

Short Answer

Expert verified

The perimeter of the square is 28unit.

Step by step solution

01

Step 1.  Apply the formula of perimeter of square

In this, use the formula of perimeter of square that is Perimeter=4脳side and also know the concept that all the sides of square is equal.

02

Step 2.  Finding the length of sides of square

Since, the two sides of the square are 49-4x&3x.

It is known that the sides of the square are equal. So,

49鈭�4x=3x49=4x+3x7x=49x=497x=7

03

Step 3.  Finding the perimeter of the square

Since, the length is x=7.

Perimeter=4脳sidePerimeter=4脳7Perimeter=28鈥�unit

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