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What is the circumference of a circle whose radius is 30cm?

Anonymous

∙ 11y ago

Updated: 12/17/2022

60 π 0r 188.496 cm

Given: radius = 30 cm

Formula: Circumference = 2 * pi * radius

Circumfere = 2 * π * 30 cm

= 60 π

or substitute π = 3.1416

= 60 π

= 60 ( 3.1416)

= 188.496 cm

Wiki User

∙ 11y ago

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What is the diameter of a circle if its radius is 30cm?

60cm

If the circumference of a circle is 30cm what is the radius?

C = pi * 2 * r30 = 3.14159 * 2 * r30 = 6.28318 * rr = 30/6.28318r = 4.77465233 cm

What is the diameter of a circle if the circumference is 30cm?

30/pi cm

How do you find the area radius and diameter with just the circumference?

Given that the circumference of any circle is 2 * pi * r, where pi is the mathematical constant (~3.14) and r is the radius, solving for the radius is quite simple. we'll call the circumference c: c = 2*pi*r divide both sides by 2*pi: c/(2pi) = r and then the diameter is just 2 * radius. Area = pi*(r)^2 = pi*(c/(2*pi))^2 = (c^2)/(4*pi) (~ denotes approx. value) Quick example: So if a circle has a circumference of 30cm: 30 cm= 2 * pi * r r = (30cm)/(2*pi) r = (30cm)/(2*3.14) = ~4.78 cm diameter = 2 * ~4.78 cm = ~9.56 cm area = (30 cm)^2 / (4* ~3.14) = ~71.66 cm^2 c = 30 cm, r = ~4.78 cm, d = ~9.56 cm

What is the area of a circle where the diameter measures 30 cm?

Diameter = 30cm so radius = 15 cm. Then Area = pi*r2 = 706.9 cm2

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Related Questions

A circle has a circumference of 30cm What is its radius when measured to the nearest tenth of a centimeter?

Its radius is 4.8 cm, rounded to the nearest tenth.

What is the circumference of a circle with a diameter of 30cm?

circumference = diameter X pi pi = 3.1416 circumference = 30cm X 3.1416 = 94 cm

What is the diameter of a circle if its radius is 30cm?

60cm

If the circumference of a circle is 30cm what is the radius?

C = pi * 2 * r30 = 3.14159 * 2 * r30 = 6.28318 * rr = 30/6.28318r = 4.77465233 cm

If the circumference of a circle is 30cm what is the diameter?

d = 9.55 cm

What is the diameter of a circle if the circumference is 30cm?

30/pi cm

What is the radius of a circle with area 30cm?

r = 3.0902 cm

How do you find the area radius and diameter with just the circumference?

Given that the circumference of any circle is 2 * pi * r, where pi is the mathematical constant (~3.14) and r is the radius, solving for the radius is quite simple. we'll call the circumference c: c = 2*pi*r divide both sides by 2*pi: c/(2pi) = r and then the diameter is just 2 * radius. Area = pi*(r)^2 = pi*(c/(2*pi))^2 = (c^2)/(4*pi) (~ denotes approx. value) Quick example: So if a circle has a circumference of 30cm: 30 cm= 2 * pi * r r = (30cm)/(2*pi) r = (30cm)/(2*3.14) = ~4.78 cm diameter = 2 * ~4.78 cm = ~9.56 cm area = (30 cm)^2 / (4* ~3.14) = ~71.66 cm^2 c = 30 cm, r = ~4.78 cm, d = ~9.56 cm

What is the area of a circle where the diameter measures 30 cm?

Diameter = 30cm so radius = 15 cm. Then Area = pi*r2 = 706.9 cm2

How do you draw the circle with radius 30cm?

-- Stick a nail into a board. -- Tie a piece of thread around a pencil. -- 30 cm from the pencil, stick the thread to the nail. -- Draw a line on the board with the pencil. Keep the thread tight and go all the way around the nail. -- The line is a circle with radius 30 cm.

If the diameter of a circle is 30Cm What is the circumferences?

d = 9.55 cm

Show you the answer for the volume in liters of a cylinder radius of 30cm and the lenght 120cm?

339.3 liters.

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