You either keep it as "89 pi" to have the exact value, or you take the desired number of decimals for pi (depending on the desired precision), for example 3.14, or 3.1416, and then multiply.
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Pi X 5 = 15.7. Pi is equal to 3.14 then you multiply it by 5.
Just multiply it with pi - approximately 3.14.Just multiply it with pi - approximately 3.14.Just multiply it with pi - approximately 3.14.Just multiply it with pi - approximately 3.14.
The calculation of pi times 4 times 4.8 is straightforward. First, multiply 4 by 4.8 to get 19.2. Then, multiply this result by pi (approximately 3.14159) to find the final answer, which is approximately 60.27808.
No, you add up all the sides. Yes, in terms of a circle. To determine the perimeter or circumference of a circle, you must multiply: 2πr or two times Pi times the radius of the circle.
C = 2 * (pi) * (radius) So plug in 2 for radius C = 2 * (pi) * (2) C= 4(pi) If you need to approximate multiply 4 times 3.14. If you do not need to approximate then your answer is 4(pi)