To find the area of a circle with a given circumference, you can use the formula A = (C^2) / (4π), where A is the area and C is the circumference. Plugging in the values, we get A = (42^2) / (4π) = 1764 / (4π) ≈ 140.72 square units.
Radius = circumference/2pi, in this case 69/2pi or 34.5/3.14, as near 11 cm as makes no difference.
Circumference = 2 x pi x radius. If you want an estimate, you can round some of the numbers involved - either the radius, or pi, or both.
circumference = 2*pi*11 = 69.115 inches to 3 dp
Area = pi*radius squared 11 in = pi*r^2 divide both sides by pi 3.50 in = r^2 take square root of each side 1.9 inches = radius
Imagine taking the ends off the cylinder, cutting the side down from end to end and unrolling the side; this creates a rectangle with the height of the cylinder along one edge and the circumference of the end along the other. Thus area of side = circumference × height. The ends of the cylinder are circles, thus: area = π × radius² → radius = √(area ÷ π) circumference = 2 × π × radius → circumference = 2 × π × √(area ÷ π) = 2 × √(area × π) → area side = 2 × √(area × π) × height → surface area of cylinder = 2 × area ends + area side → surface area = 2 × 11 units² + 2 × √(11 units² × π) × 11 units → surface area = 22 + 22 × √(11π) units² → surface area ≈ 22 + 129.33 units² ≈ 151 units²
The circumference of a circle with a radius of 11 is: 69.12
The radius is 11.
A circle with a radius of 11 units has a circumference of 69.12 units.
The circumference of a circle with a radius of 11 is about 69.12The general formula is circumference = (2 x radius) x pi. Therefore, in this instance, the answer is 2 x 11 x pi = about 69.12.
the area can not be cubed. the area is always squared. volume is cubed. the formula for area is pie multiplied by radius squared. your formula for your circle is... A = 121pi in2 the radius in your circle is 11 inches the formula for circumference is two times pi times the radius C = 2 * (3.14159) * 11 your answer is 69.11498in
Radius, r = diameter / 2 Then circumference = 2*pi*r and area = pi*r*r
The circumference of a circle with a radius of 11 is about 69.12 centimeters.The general formula is circumference = (2 x radius) x pi. Therefore, in this instance, the answer is 2 x 11 x pi = about 69.12
Using 3.14 as Pi the area of circle is: 0
The radius a circle with area of π*121 yd2 is 11 yds [= sqrt(121)] The circumference, therefore, is 2*11*π = 22*π yards.
It is: 2*pi*11 yards
A circle with a radius of 11 inches has an area of 380.13 square inches.
C = 69.115 inches.