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Find the circumference and area of the circle of radius 4.2 cm.

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answer is A.

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Detailed Solution

Concept- Here you can use the formula perimeter

to calculate the perimeter of the circle, and the formula area =

to calculate the area of the circle.
Circumference of the circle is

We can calculate the circle’s area by:
Question Image

Hence, the correct answer is option (1).

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