area is A=pi x R2, so 3.14 x 2(2.50)=15.7 the formula is a = pi x r squared . not r x 2 r = d / 2 ie 2.5/2 = 1.25 squared
The same as half the side of the square, as the radius of the circle is half its diameter, and the diameter of the circle is equal to the side of the square.
The area of a circle is calculated as the value pi(3.1416...) times the square of the radius of that circle.In this case, where a circle has a diameter of 55 meters, the radius, which is half the diameter, will be 25 meters.So to solve for the area (A) of this circle:A = pi x r2 = 3.1416 x 25m x 25m = 1963.5m2 = 1963.5 square meters.
Area = (pi*92)/2 127.2345025 square meters
The circumference (full circle) is the diameter multiplied by pi. For the "half-circle", you would have to divide that by 2.
The formula for the area of a circle is A = pi x r2 where r is the radius. If the diameter of the circle is 10 meters, then the radius is half that amount or 5 meters. Plug that value into the formula for r, using 3.14 as an approximation for pi. The area is 3.14 x 52 or about 78.5.
16 square meters, to 2 significant digits. The area of a circle is calculated as the value pi (3.1416...) times the square of the radius of that circle. In this case, where a circle has a diameter of 4.2 meters, the radius, which is half the diameter, will be 2.1 meters. So to solve for the area (A) of this circle: A = pi x r2 = 3.1416 x 2.1m x 2.1m = 15.954456m2 = 16 square meters.
The same as half the side of the square, as the radius of the circle is half its diameter, and the diameter of the circle is equal to the side of the square.
The area of a circle is calculated as the value pi(3.1416...) times the square of the radius of that circle.In this case, where a circle has a diameter of 55 meters, the radius, which is half the diameter, will be 25 meters.So to solve for the area (A) of this circle:A = pi x r2 = 3.1416 x 25m x 25m = 1963.5m2 = 1963.5 square meters.
Oh, dude, you're hitting me with the math questions! Okay, so the area of a circle is π times the radius squared. Since the diameter is 20 meters, the radius is half of that, so 10 meters. Plug that into the formula, and you get an area of 100π square meters. So, like, grab a tape measure and start marking out that circle, or just trust me on the math, whatever floats your boat.
Using 3.14 as Pi the area of circle is: 12.56
Half of that.
Area = (pi*92)/2 127.2345025 square meters
14.13
The circumference (full circle) is the diameter multiplied by pi. For the "half-circle", you would have to divide that by 2.
The formula for the area of a circle is A = pi x r2 where r is the radius. If the diameter of the circle is 10 meters, then the radius is half that amount or 5 meters. Plug that value into the formula for r, using 3.14 as an approximation for pi. The area is 3.14 x 52 or about 78.5.
The formula for the area of a circle is pi x radius2. The radius is half the diameter, and the diameter of an inscribed circle is the same as the length of a side of the square.The formula for the area of a circle is pi x radius2. The radius is half the diameter, and the diameter of an inscribed circle is the same as the length of a side of the square.The formula for the area of a circle is pi x radius2. The radius is half the diameter, and the diameter of an inscribed circle is the same as the length of a side of the square.The formula for the area of a circle is pi x radius2. The radius is half the diameter, and the diameter of an inscribed circle is the same as the length of a side of the square.
half of the radius the radius is half of the diameter the diameter is the with of the circle. This also can be called a quadrent circle.