Q49 of 61 Page 93

The side of a square is 5cm. How many times does the area increase, if the side of the square is doubled?

Side of square = 5 cm


Area of square = 5 × 5


= 25 sq.m


If side doubles = 10 cm


New area = 10 × 10


= 100 sq.m


So the area becomes four times the old area.


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