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pi*r2 = 400*pi
Therefore radius = 20 meters
Cicumference = 2*pi* radius = 40*pi meters
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∙ 13y ago
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If a circle has an area of 400 cm find the radius to the nearest tenth?
r = sqrt(400/pi) = 11.3 cm
If a circle has area of 400 square units then what is the radius?
If a circle has area of 400 square units then its radius is: 11.25 units.
What is the circumference of a circle with an arc of 90 and an angle of 81?
90*360/81 = 400 units of length.
What is the area of a circle with a radius of 20?
400 pi
Find the area of a circle with the diameter of 40m?
The area of a circle is (pi) times (the radius)2. The radius of the given circle is 1/2 of the diameter = 20m. Area = (pi) times (20)2 = 400(pi) = 1,256.64 square meters(rounded)
Find the radius of a circle of with area of 400?
11.3
Find the circumference of a circle if the area is 400 Pi meters?
First we have to find the radius: pi*radius2 = 400*pi square meters Divide both sides by pi and then square root both sides: radius = 20 meters 2*pi*radius or pi*diameter = circumference 2*pi*20 = 40*pi meters
If the radius of a circle is doubled what happens to the area of the circle?
the area of the circle is increased by 400%
If a circle has an area of 400 cm find the radius to the nearest tenth?
r = sqrt(400/pi) = 11.3 cm
If a circle has area of 400 square units then what is the radius?
If a circle has area of 400 square units then its radius is: 11.25 units.
What is the circumference of a circle with an arc of 90 and an angle of 81?
90*360/81 = 400 units of length.
What is the area of a circle with the radius of 20 inches?
Using 3.14 as Pi the area of circle is: 1256.0
What is the area of a circle with a radius of 20?
400 pi
Find the area of a circle with the diameter of 40m?
The area of a circle is (pi) times (the radius)2. The radius of the given circle is 1/2 of the diameter = 20m. Area = (pi) times (20)2 = 400(pi) = 1,256.64 square meters(rounded)
If a circle has the diameter of 40 in what is the area?
Area of circle: pi*20^2 = 400*pi square units
What is the area of a circle with a diameter of 400 miles?
A ≈ 126,000 square miles.
What is the area of a circle whose radius is 20 meters?
Using 3.14 as Pi the area of circle is: 1256.0
