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Question

A large cake has a radius of 7 cm. What will be the smallest area of the box holding the cake?


A
49 m2
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B
194 m2
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C
149 m2
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D
56 m2
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Solution

The correct option is B 194 m2

The radius is given as 7 cm. Hence, its diameter will be 2 × 7.
The diameter of the cake will be equal to the length of the side of the box.
Side of box =14cm
Area of the box =(side)2=(14)2=196 m2


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