Question

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Answer 1

9π

Explanation:

3²π = 9π

Answer 2

28.26 units square.

EXPLANATION

The area of a circle is given by

`A = \pi \: {r}^(2)`

The radius of the circle is given as 3 units.

We substitute r=3 and π=3.14 into the formula to obtain:

`A = 3.14 \: * {3}^(2)`

`A = 28.26sq. \: units`

Therefore the area of the circle 28.26 units square.