Study guides

☆☆

Q: What is the radius of a circle whose circumference is 40 pi?

Write your answer...

Submit

Still have questions?

Continue Learning about Other Math

The circumference of a 40 mm circle is: 126 mm

get the circumference of the circle using 2*pi*r (1.2*pi) times that by 40 to get the answer (48*pi)

Circumference is 2 x pi x r = 3.14 x 2 x 20 = 3.14 x 40 ='125.6 cms

About 40 feet. Circumference = 3.14 x diameter

20 millimeters

Related questions

radius = 40/(2*pi) in inches

Circumference of any circle = 2*pi*radius or diameter*pi

251.2 feet

40 ft

1256 inches ++ Another Answer ++ The formula for finding the Circumference of a circle is C = Pi x D where D is Diameter and Pi is 3.1416. The Radius of a circle is one-half of the Diameter, hence the Diameter of a circle with a 20-inch Radius is 40 inches. Using the formula above, multiply 40 x 3.1416 to find the Circumference: 40 x 3.1416 = 125.664 inches.

In order to even discuss this question, we must assume that the unit of the '40' is the square of the unit of the '4'. -- The radius, diameter, and circumference of the circle with an area of 40 are each 10.794% shorter than the corresponding measurement in the circle with radius = 4 . -- Its area (40) is 20.423% less than the area of the circle with the radius of 4 .

The circumference of a 40 mm circle is: 126 mm

The formula to figure out the circumference of a circle is C=2(pi)r. So with a circle that has a radius of 40 inches, you can set up the formula like: C=2(pi)40. To figure this out on a calculator, multiply 2 with pi and then multiply that answer with 40. If you do not have a pi symbol on your calculator you can multiply 2 with 3.14159 then multiply that answer with 40.

Radius: 40/2pi = 6.366197724 Area: pi*6.366197724 squared = 127.324 square feet rounded

Circumference = pi*40 feet

Circumfrence is 2 times pi times the radius 6.3 x 2 x 3.1415 39.5829 approximately 40

Radius = 40 m implies circumference = 2*pi*40 = 251.3 m approx.

People also asked