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Find the area of a circle with a diameter of 16.
Either enter an exact answer in terms of
pi or use 3.14 for
pi and enter your answer as a decimal.
units
^(2)

Find the area of a circle with a diameter of $16$ . $\newline$ Either enter an exact answer in terms of $\pi$ or use $3$ . $14$ for $\pi$ and enter your answer as a decimal. $\newline$ $\square$ units $^{2}$

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Negative Exponents

Full solution

Q. Find the area of a circle with a diameter of

16

.

\newline

Either enter an exact answer in terms of

\pi

or use

3

.

14

for

\pi

and enter your answer as a decimal.

\newline

\square

units

^{2}

Calculate Radius: Calculate the radius of the circle by dividing the diameter by $2$ . $\newline$ Radius = $\frac{\text{Diameter}}{2}$ $\newline$ Radius = $\frac{16}{2}$ $\newline$ Radius = $8$
Use Area Formula: Use the formula for the area of a circle, which is $A = \pi * r^2$ . $\newline$ Area = $\pi * (\text{Radius})^2$ $\newline$ Area = $\pi * (8)^2$
Square Radius and Multiply: Square the radius and multiply by $\pi$ . $\newline$ Area = $\pi \times 64$ $\newline$ If using $\pi$ as $3.14$ , then Area = $3.14 \times 64$
Calculate Area: Calculate the area with the value of $\pi$ as $3.14$ . $\newline$ Area = $3.14 \times 64$ $\newline$ Area = $200.96$

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