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Nastasia [14]
3 years ago
15

A cake has a circumference of 25 1/7 inches. What is the area of the cake? Use 22/7 to approximate pi

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
7 0
To calculate for area given the circumference we proceed as follows:
C=2πr
where:
r=radius
thus given that C=25 1/7 in=176/7
thus plugging in our formula to solve for r we get:
176/7=2πr
thus
r=4.002~4.00 in
hence the area will be:
A=πr²
A=π×(4²)
A=50 2/7 in²


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