Answer:
- exact: 64π square units
- 3.14 for π: 200.96 square units
- 22/7 for π: 201 1/7 square units
Explanation:
You want the area of a 16-unit circle using different values for pi.
Area
The formula for the area of a circle is ...
A = πr² . . . . . . where r is half the diameter
For the different values of pi, this will be (in square units) ...
π(8²) = 64π . . . . exact
3.14(8²) = 200.96 . . . . using 3.14 for π, slightly low
22/7(8²) = 201 1/7 . . . . using 22/7 for π, slightly high
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