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The side of a square is 10 cm. How many ...

The side of a square is 10 cm. How many times will the new perimeter become if the side of the square is doubled?

A

2 times

B

Remains same

C

4 times

D

3 times

Text Solution

Verified by Experts

The correct Answer is:
A
Side of square = 10 cm Perimeter of square
= 4`xx` side of square
`= 4 xx 10`
Perimeter of square = 40 cm
Now, side of square is double.
New side of square = `10 xx 2 = 20` cm
New perimeter of square
=`4 xx ` New side of square
`= 4 xx 20 = 80` cm
Old perimeter = 40
New perimeter = 80
Its clearly visible that perimeter also become twice of old one.
Option (1) is correct.
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