Answer:
64π cm²
Explanation:
You want the exact area of a circle of radius 8 cm.
Circle formula
The area of a circle is given by ...
A = πr²
Using the given value of radius, we find the area to be ...
A = π(8 cm)² = 64π cm²
The area of the circle is 64π square centimeters.
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Additional comment
The "exact" area can only be expressed using a symbol for the irrational number pi.