Q3 of 61 Page 93

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

Given:


Length of side = 10 cm.


Perimeter of Square, P1 = 10 × 4


= 40 cm


If the side is doubled, so new side = 20 cm


So new perimeter, P2 = 20 × 4


= 80 cm


So it is clearly seen that the new perimeter is twice that of the old perimeter.


So correct answer is A [two times].

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