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Q.

Find the area of a square in square centimeters, whose side is 1.1 dm(decimeter).

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a

121 cm2

b

120 cm2

c

1.21 cm2

d

1.20 cm2

answer is A.

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Detailed Solution

detailed_solution_thumbnail

Given, side of the square = 1.1 dm

since , 1 dm(decimeter) = 10 cm

so, 1.1 dm = 1.1 x 10 cm = 11 cm

side of square = 11 cm

So, Area of square = (side)2

                            = (11)2 = 121 cm2

 

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