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Q: What is the circumference of a circle if the diameter is 40 inches?

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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.

Circumference = pi*40 feet

The circumference of a 12-foot-diameter circle is 37.7 feet.

About 40 feet. Circumference = 3.14 x diameter

circumference = diameter * pi. Therefore, diameter = circumference ÷ pi.

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

It is impossible to answer the question because the circumference cannot be 40 degrees.

circumference? 40 pi ft.

Estimate: 3*40 = 120 inches Actual: pi*39 = 122.5 inches to one decimal place

radius = 40/(2*pi) in inches

125.66 mm

40 centimeters. The size of a circle is typically stated by giving its diameter. The circumference of a 40 cm circle (distance around the outside) is 40 x pi or about 125.66 cm.

Well this depends on If the radius is 40 inches or If 40 inches is the entire diameter. Circumference is determined using the formula Pi x RadiusÂ² Assuming 40 is only a radius it would be 3.14 x 40Â² or 3.14 x 1600 = 5024 inches If 40 inches is the entire diameter then its simply Pi x Diameter since the entire diameter is the radius squared. 3.14 x 40 = 125.6 inches.

Circumference= PI x Diameter = 3.14 x 40 feet = 125.6 feet

The area of the circle is 1,256.6 square inches.

Circumference = pi * diameter = 3.14159 * 11.6 = 36.44 Rounded to the nearest ten, that is 40 units.

40'

pi x 40 = 3.1415 x 40 = 31.415 x 4 = 125.66 feet

By definition pi is the ratio between the circumference and the diameter pi=C/D so C=pi*D and C=pi*40=125.6 (if pi=3.14)

If the table is a circle and the perimeter is 40 feet, then the diameter (rounded to 2 decimal places) would be 12.74 circumference = diameter x pi so, diameter = circumference / pi

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.

Area of circle =(11/14) * d *d d denotes diameter. For your case answer is 7.1365 inches

Circumference = pi*Diameter So D = C/pi = 40/pi = 12.732 inches (to 3 dp)

Circumference is equal to πd and therefore is 22/7 ×40=125 whole number and 5 all over 7

Circumference = pi*diameter so diameter = circumference/pi = 40/pi = 12.7324 feet (to 4 dp)