The general eq'n for a circles area is
A = pi r^(2)
Hence
With a diamter of 22 inches . the radius(r) is half the diameter at 11 inches.
Substituting
A = pi 11^(2)
A = 121 pi
Using pi = 3.14
Hence
A = 121 X 3.14
A = 379.94 sq.ins. (NOT ins^(2))
The circumference of a circle is always its diameter multiplied by pi. Therefore, the circumference of a circle with diameter 22 cm is:П*22 = 69.12answer rounded to the nearest hundredth
To find the diameter of a circle with a circumference of 28 inches, we can use the formula C = πd, where C is the circumference and d is the diameter. Given that C = 28 inches, we can rearrange the formula to solve for d: d = C / π. Therefore, the diameter of a circle with a circumference of 28 inches is approximately 8.91 inches.
A cylinder with a diameter of 22 inches and a height of 15 inches has a volume of 5,701.99 cubic inches.
Multiply 22/7 by the diameter of the circle. Or 3.14
Circumference of a circle = (pi) x (diameter)C = (22) x (pi) = 69.115 feet (rounded)
circumference of a circle = pie times the diameter = 22/7 x diameter = 22/7 x 7 inches = 22 inches
A semicircle is half a circle, so its area is half that of a circle: radius = 1/2 diameter = 22 ÷ 2 = 11 area = 1/2πr2 = 1/2π112 ~= 190 sq in
A circle with a radius of 22 inches has a circumference of 138.23 inches.
Diameter being 22 meters, the area is 380.12 meters
d = 7 inches (7.00282")
A ≈ 380.13
22/pi = very close to 7 in
Circumference = 7*pi which is about 22 inches
380.1 square units.
The area of a circle is pi*r2, where r is the radius. In this case, 22/7 will be used for pi. Area of a semicircle: A semicircle is half of a circle, so the area will be half of a circle: A = (1/2)*pi*r2 Example: Find the area of a semicircle with a radius of 10 meters. A = (1/2)*(22/7)*(10)2 = (1/2)*(22/7)*(100) = 1100/7 or about 157.14 square meters Area of a quarter circle: A quarter circle is a forth of a circle, so the area will be A = (1/4)*(pi)*r2 Example: Find the area of a quarter circle with a diameter of 4 inches: (Notice that the diameter is given, so the radius in this case is 2 inches:) A = (1/2)*(22/7)*(22) = (1/2)*(22/7)*4 = 44/7 or about 6.286 square inches.
R=D/2. If the diameter of a circle is 18 inches, the radius is 9 inches. Radius = 1/2 diameter or 9"
When you say "a 20 inch circle", I'm going to assume you mean the distanceall the way across it, through the center ... that is, the circle's "diameter".The area of a circle is (pi) x (Radius)2 = (pi) x (100) = 314.159 square inches (rounded)