Find the circumference of each circle. Use 3.14 for the value of n. Round your Answere to the nearest tenth
Area is 201cmsquared
πr^2 = 201
r = √(201/π)
C = 2πr = 2π√(201/π) = 2√(201π)
To find the circumference of a circle, we need to know its area.
The formula for finding the area of a circle is:
Area = π * r^2
We are given that the area of the circle is 201 cm^2, and we can assume that 3.14 is the value of π (pi). Let's solve the equation for the radius:
201 = 3.14 * r^2
Divide both sides of the equation by 3.14:
r^2 = 201 / 3.14
Now, take the square root of both sides to solve for the radius:
r = √(201 / 3.14)
Use a calculator to find the value of r. Once you have the radius, you can use the formula for finding the circumference of a circle:
Circumference = 2 * π * r
Substitute the value of r into the formula, using the rounded value if necessary, and then calculate the circumference.
To find the circumference of a circle, we need to know the radius or the diameter. Unfortunately, only the area of the circle is given. However, we can use the area to find the radius and then use the radius to find the circumference.
The formula for the area of a circle is given by:
Area = π * r^2,
where π is the mathematical constant approximately equal to 3.14, and r is the radius of the circle.
In this case, the area is given as 201 cm^2. Using the formula, we can solve for the radius:
201 = 3.14 * r^2
Divide both sides of the equation by 3.14:
201 / 3.14 = r^2
r^2 ≈