Answer:
C. 615.7536 square inches
Step-by-step explanation:
The formula for the area of a circle is ...
A = πr²
Fill in the given numbers and do the arithmetic.
A = 3.1416×(14 in)² = 615.7536 in²
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Comment on the value of pi
We are interested to see that recent problems require use of a value of pi that has 5 significant digits, instead of 3 (as in 3.14). The only problem in this scenario is that the answer is now reported to 7 significant figures, so is still wrong. The correct 7-digit answer to this problem is 615.7522 in². It would be obtained by using a 7- or 8-digit value for pi: 3.141593 or 3.1415927 and rounding appropriately.
