What is the formula to find the radius? If the diameter of a circle is known then the formula for radius is diameter divided by 2. If the circumference of a circle is known then the formula for radius is the circumference divided by 2 pi. And if the area of a circle is known then...
Related to this Question How to find the radius of a circle from the given two-points? How to find the radius of a circle from the segment? How do you find the center and radius of the circle given (x - 3)^2 + (y - 1)^2 = 25?
Example 1: If the radius of a circle is 30 cm, find its circumference. Solution: r = 30 cm Use the formula to find the circumference of a circle: C = 2\(\pi r\) [Write the formula] = 2 x 3.14 x 30 [Substitute the value of r and \(\pi\)] = 6.28 x 30 = 188.4 Therefor...
The radius of a circle, half of its diameter, can help you find the circumference in a couple of steps. First, double the radius to get the diameter (radius x 2, or radius + radius). One you have the diameter, you can use the equation C = πd. If you want to know the circumfe...
To find the area of a circle inside a right angled triangle, we have the formula to find the radius of the right angled triangle, r = ( P + B – H ) / 2. Given
For finding the radius of circle using the circle's diameter's endpoints, we have to follow the steps mentioned below: Find the distance between the...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts ...
A cone is a three-dimensional object with a circular base. As the cone grows upward, the size of the circle lessens until it becomes a single point at the top of the cone. A radius is the distance from the circle's middle to its perimeter, which is known
To find the area of a circle, you take pi times the radius squared, or A = pi r^2. Using this formula, you can find the area of a circle if you know the radius -- or the diameter -- by plugging in your values and solving for A. Pi is approximated as 3.
Divide the area by pi then square root your answer which will give the radius of the circle and use 2*pi*radius to find the circumference. Wiki User ∙ 14y ago This answer is: 👍👎Add a CommentAdd your answer: Earn +20 pts Q: How do you find the circumfrence of a circle...
The circumference a circle can also be represented in terms of the radius of the circle.We can define the radius of a circle in terms of the diameter through the relationship: d=2∗r Substituting this into the previous equation to find circumference of the circle, we get: ...