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What is the area and circumferance of a circle with the radius of 2?
Wiki User
∙ 14y ago
Area 4 pi, circumference 4 pi! This is because 2 is the only number equal to half of its square.
Wiki User
∙ 14y ago
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How do you find the radius of a circle if you know the circumferance?
radius = circumference/2*pi
What is the circumference of a semi circle with a six inch radius?
find the circumferance as if it was a whole circle but when you get the answer divide it by 2
How do you find the radius of a circle with a circumferance of 70 inches?
divide the circumference by 3.14 to get the diameter - then divide that by 1/2 to get the radius Radius = Circumference / 2 x pi from C = Diameter x pi
Formula and result of area of circle?
The formula for the area of a circle is: Area = (pi) x (Radius)2 . When you know the radius of the circle and you use it to calculate the area of the circle, the result will be equal to (pi) x (Radius)2 .
What is area of a circle with radius of 2 cm?
A circle with a radius of 2 cm has an area of 12.57 square cm.
How do you get the radius from the circumference?
The circumferance of a circle is equal to 2 x pi x r, where r is the radius, i.e. approximately 6.2832 than its radius. Divide the circumferance from the figure above to get the radius of a circle in which the circumferance is known.
How do you find the radius of a circle if you know the circumferance?
radius = circumference/2*pi
What is the circumferance of a seven eighths inch circle?
7/8 inch circle has a diameter of 7/8 and a radius of 7/16=.4375 circumferance of a circle = 2*pi*radius = 2*3.14*.4375 =2.7475 or 7*pi/8
What is the circumference of a semi circle with a six inch radius?
find the circumferance as if it was a whole circle but when you get the answer divide it by 2
How do you find the radius of a circle with a circumferance of 70 inches?
divide the circumference by 3.14 to get the diameter - then divide that by 1/2 to get the radius Radius = Circumference / 2 x pi from C = Diameter x pi
Formula and result of area of circle?
The formula for the area of a circle is: Area = (pi) x (Radius)2 . When you know the radius of the circle and you use it to calculate the area of the circle, the result will be equal to (pi) x (Radius)2 .
What is area of a circle with radius of 2 cm?
A circle with a radius of 2 cm has an area of 12.57 square cm.
Why do you use the radius in the formula of finding the area of a circle?
Area of circle = pi*(radius)2
What is the radius of a circle if the area is 4?
The radius of the circle is 2 units. * * * * * If the area is 4 units, the radius is 1.128 units
How do you fine the area of a circle given the radius of the circle?
Area of a circle = (pi) x (radius)2 (pi) = about 3.1416 or about 22/7 . (It can never be written down exactly.) (radius)2 = (radius) x (radius)
What is the area in square cm of the circle if the radius is 12 cm?
Area of ANY circle is (pi) x (radius)2 .
What do you multiply the radius by?
circumference of a circle = 2*pi*radius area of a circle = pi*radius squared
