Divide the circumference by 2 pi to find the radius if you know c. it's impossible to write the exact value of pi, but for most problems 3.14 is a good enough approximation. So, if your circumference is 618, you would get r = 618 / 2 pi r = 618 / 2 x 3.14 r = 618 / 6.18...
Using the Radius to Find the Other Measurements Finding the Radius from Other Measurements Lesson Summary FAQs Activities Where is the radius of a circle? The radius of a circle is the line segment from the center of a circle to a point on the boundary of a circle. Is a radius half ...
The midpoint of a line is the halfway mark of that line. A radius measures the distance from a circle's middle point, or origin, to its surrounding perimeter, also known as its circumference. The midpoint has much in common with the radius, for the midpoint on a diameter measures its...
To find the radius of a circle using two points and its arc length, you can use the formula: r = (arc length * 2) / (distance between two points). The distance between the two points can be calculated using the distance formula: d = √((x2-x1)^2 + (y2-...
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.
Solved Examples on Diameter of a Circle 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 \...
The radius of a sphere or a circle is the distance from its center to its circumference. It is same for any point on the circle.
How to find the radius of a circle with a length on a right triangle? Circumcenter The circumcenter of a triangle is the point where the perpendicular bisectors of the sides of the triangle intersect. It is also the center of the circumcircle of the triangle, which is the c...
A circle with center {eq}O {/eq} is drawn below. Find the area of the sector indicated in the shaded part below. Give your answer in the exact form in terms of {eq}\pi {/eq}. Step 1:Look at the given figure and identify the radius{eq}(r) {/eq} and th...
Best Answer 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 ∙13yago This answer is: Add your answer: Earn +20pts Q:How do you find the circumfrence of a circle when you have...