All Basic Geometry Resources
Example Questions
Example Question #1 : How To Find Circumference
A circle has the equation below. What is the circumference of the circle?
(x – 2)2 + (y + 3)2 = 9
The radius is 3. Yielding a circumference of .
Example Question #1 : Circumference Of A Circle
If a circle has an area of , what is the circumference?
For a circle, the formula for area is and the formula for circumference is , where is the radius and is the diameter.
Plug the known quantities into the area formula and solve for the radius:
Now plug this value into the circumference formula to solve:
Example Question #11 : How To Find Circumference
Line is the radius of the circle shown and has a length of 7.5. What is the circumference of the circle?
Plug in the given value for the radius to find the circumference:
Example Question #1 : Circumference Of A Circle
Find the circumference of a circle with a radius of .
Recall the formula for finding the circumference of a circle:
We can substitute in the value for the radius in order to find the circumference of the circle in question.
Solve.
Simplify.
Example Question #2 : Circumference Of A Circle
Find the circumference of a circle that has a radius of .
Recall the formula for finding the circumference of a circle:
We can substitute in the value for the radius in order to find the circumference of the circle in question.
Solve.
Simplify.
Example Question #967 : Grade 7
Find the circumference of the circle with a radius of .
Recall the formula for finding the circumference of a circle:
We can substitute in the value for the radius in order to find the circumference of the circle in question.
Solve.
Simplify.
Example Question #1 : Circumference Of A Circle
Find the circumference of a circle with a radius of .
Recall the formula for finding the circumference of a circle:
We can substitute in the value for the radius in order to find the circumference of the circle in question.
Solve.
Simplify.
Example Question #11 : Circumference Of A Circle
Find the circumference of a circle with a radius of .
Recall the formula for finding the circumference of a circle:
We can substitute in the value for the radius in order to find the circumference of the circle in question.
Solve.
Simplify.
Example Question #41 : Know And Use The Formulas For The Area And Circumference Of A Circle: Ccss.Math.Content.7.G.B.4
Find the circumference of a circle with a radius of .
Recall the formula for finding the circumference of a circle:
We can substitute in the value for the radius in order to find the circumference of the circle in question.
Solve.
Simplify.
Example Question #11 : How To Find Circumference
Find the circumference of a circle with a radius of .
Recall the formula for finding the circumference of a circle:
We can substitute in the value for the radius in order to find the circumference of the circle in question.
Solve.
Simplify.
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