Area Problems
The circumferences of two concentric are 176 m and 132 m respectively. what is the difference between their radii?

44 meter
8 meter
5 meter
7 meter

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Area Problems
The perimeter of two squares are 68 cm. Find the perimeter of the third square whose area is equal to the different of the areas of these two squares.

64 cm
32 cm
60 cm
8 cm

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