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Chapter 3: Q54. (page 146)

Find the perimeter of the square.

Short Answer

Expert verified

The perimeter of the square is 20鈥�units.

Step by step solution

01

Step -1 - Apply the concept of Linear equation

In this, use the formula of perimeter of square, Perimeter=4脳side and also keep this point in mind that the all sides of squares are equal.

02

Step -2 – Find the value of x 

Since,

Two sides of the square are 2x&3x-5.

Now, the sides of the square are equal (already known) then,

2x=3x鈭�52x鈭�3x=鈭�5鈥冣赌�(take3xtoleftside)鈭�x=鈭�5鈥冣�勨�冣赌冣�勨��(cancelthe鈭�sign)x=5

03

Step -3 – Finding the perimeter of square.

Since, the length of the side of square, x=5

Now, perimeter of square is

Perimeter=4脳sidePerimeter=4脳5Perimeter=20units

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