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To find the area, the formula is: pi*r2.
Plug in the information: pi*(4)2.
Solve: pi*16
Using 3.14 as Pi the area of circle is: 50.24
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Area of a circle with 4 inch radius?
The formula to calculate the area of a circle is A = πr^2, where A is the area and r is the radius. Given a radius of 4 inches, we can substitute r = 4 into the formula to find the area. Therefore, the area of a circle with a 4-inch radius is A = π(4)^2 = 16π square inches, or approximately 50.27 square inches.
What would be the area of a circle with a radius of 4 inches?
The area would be 50.3 square inches.
If the radius of a circle is 4 inches what is the diameter circumference and area?
If the radius of a circle is four inches the diameter, circumference and area are:Diameter = 8 inchesCircumference = 25.13 inchesArea = 50.27 square inches
How many square inches are in a 4 inch circle?
Area of circle in square inches = pi*radius squared
What is the best estimate for a area of a circle with a radius of 4 inches?
50.26548246 Inches 127.6743254 Centimetres
If a circle's circumference is 4pi inches and it's area is 4pi square inches what is the radius of the circle in inches?
Circumference is pi * r * 2. Area is pi * r2. In your circle, both r * 2 and r2 equal 4. Your radius is 2 inches.
How man square inches in a 4 round circle?
If the circumference of the circle is 4 inches then the radius = 4/(2*pi) = 0.6366197724 inches And the area of the circle = pi*0.63661977242 = 1.273239545 or about 1.273 square inches
What is the area of a circle that has a diameter of eight inches?
The area of a circle is the number pi (3.14159...) times the square of the radius. The radius is half the diameter. So if the diameter is 8 inches, the radius is 4 inches. Squaring that gives us 4 x 4, or 16 square inches. Multiplying 16 by pi equals an area slightly larger than 50.26 square inches.
The area of a circle is 113.04 in. 2. What is the radius of the circle?
Radius of circle: square root of (113.04/pi) = 5.9985 inches rounded to 4 decimal places
What is the diameter of circle if the radius is 4 inches?
8 inches; the diameter of a circle is twice its radius.
What is the area of a quarter circle with radius 6 inches?
That would be 1/4 of the area of the entire circle. pi * r^2/4 (or πr2/4). Area of a circle = pi*62 = 113.0973355 or about 113 square inches, which, when divided by 4, gives you 28.25 square inches.
What is the area of a 2 inch radius circle?
Area of circle: pi times 2 squared = 4*pi square inches
