Pi goes on forever. However, most people equal pi to 3.14. Whenever you multiply something by 10, you move the decimal place one to the right. So, in this case, the answer would be 31.4.
Chat with our AI personalities
Circumference is 2 times pi times radius, so the circumference of this circle is 2 times pi times 5, or 10 times pi. If a decimal answer is needed, pi is approximately 3.14, so C=31.4
When you multiply 12.8 times pi the exact answer is12.8 Pi, but you can round off the answer to40.192because pi is about equal to 3.14.
pi times radius or diameter equals are of a cirlce
The volume of a cylinder is the area of its base times its height. 10 pi square centimeters * 25 centimeters = 250 pi centimeters cubed = 785.398 centimeters cubed
Area of the base times the height divided by 3. (pi*6*6*10)/3=376.8 approximately because of the rounding of pi to 3.14