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36 votes
36 votes
The diameter of a circle is 24 inches. What is the circle's circumference?

Use 3.14 for n.
inches

User Simsom
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2.7k points

1 Answer

18 votes
18 votes

If 24 inches is the diameter of the circle then multiply by 3.14 to find the circumference. 3.14 is known a Pi (pie) and is a constant that works with any size circle to find the circumference when the diameter is known

24x3.14 = 75.36

But if you do the sum on your calculator and use the Pi symbol x 24 you get 75.3982 and that is because the decimal fraction part of 3.1415926---------- And goes on forever. Same as the fraction 1/3 expressed as a decimal fraction is 0.3333333333333333 recurring forever

But in this case it is practical for everyday purposes to use 3.14

User Tomer Arazy
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2.6k points