3.14*15=47.1
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
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
If the wheel made 3000 revolutions and covered 45000 pi inches, then one revolution would cover 15 pi inches. That is the circumference. The circumference is equal to 2 times the radius times pi. Then the radius is 7.5 inches.
The answer is Pi times radius squared. Although you can't know anymore since you don't give what the radius is. Although, Pi can be simply referred to as 3.14
No because 15 times pi is an irrational number
The expression ( 2 \times \pi \times 15 ) calculates the circumference of a circle with a radius of 15 units. Using the approximate value of ( \pi ) as 3.14, the result is approximately ( 2 \times 3.14 \times 15 = 94.2 ). Therefore, ( 2 \times \pi \times 15 ) is approximately 94.2 units.
It is 15 times pi in inches
Pi times pi equals 9.869604401089358 (to 15 decimal places).The square value 9.8696 is commonly used.If you use (pi)2 = 10 in your calculations, your answer is only wrong by about 1.3% .
1 degree = pi*radian/180 So therefore 15 times pi*radian/180 = pi*radian/12
The circumference of a circle can be calculated using the formula ( C = \pi \times d ), where ( d ) is the diameter. For a circle with a 15 cm diameter, the circumference is ( C = \pi \times 15 ) cm, which is approximately 47.1 cm when using ( \pi \approx 3.14 ).
The circumference of a circle can be calculated using the formula ( C = 2\pi r ), where ( r ) is the radius. If the radius is 15, then the circumference is ( C = 2\pi \times 15 = 30\pi ). Approximating (\pi) as 3.14, the circumference is approximately 94.2 units.
Circumference of the circle: 15 times pi = 47.1238898 meters
the same as pi squared, which is 9.86960440109
Circumference = pi times the diameter, or pi times 2 times radius. Area = pi times (radius squared)
pi * 225/4 Radius is 15/2 pi r2 = pi * (15/2)2 = pi * 225/4
C= 2 times pi and C= pi times diameter C= 2 times pi and C= pi times diameter