All High School Math Resources
Example Questions
Example Question #7 : How To Find The Circumference Of A Circle In Pre Algebra
If the diameter of a circle is , what is the circumference?
The formula for circumference is . The problem gives us the diameter instead of the radius, so we need to convert.
The diameter is twice the radius or .
This means that, for this circle, .
Divide both sides by :
Plug this value into our initial equation to solve:
Example Question #8 : How To Find The Circumference Of A Circle In Pre Algebra
What is the circumference of a circle with a radius of ?
The formula for circumference of a circle is .
Plug in our given information and solve.
Example Question #9 : How To Find The Circumference Of A Circle In Pre Algebra
What is the circumference of a circle with a radius of ?
The formula for circumference of a circle is .
Plug in our given values.
Example Question #10 : How To Find The Circumference Of A Circle In Pre Algebra
What is the circumference of a circle with radius of ?
The formula for circumference of a circle is .
Plug in our given values.
Example Question #11 : How To Find The Circumference Of A Circle In Pre Algebra
What is the circumference of a circle with a radius of ?
The formula for circumference of a circle is .
Plug in our given values.
Example Question #12 : How To Find The Circumference Of A Circle In Pre Algebra
What is the circumference of a circle with a radius of ?
The formula for the circumference is .
Plug in our given radius and solve.
Example Question #41 : Geometry
What is the circumference of a circle with a radius of ?
To find the circumference of a circle given the radius we must first know the equation for the circumference of a circle which is
We then plug in the number for the radius into the equation yielding
We multiply to find the value for the circumference is .
The answer is .
Example Question #42 : Geometry
What is the circumference of a circle with a radius of ?
To find the circumference of a circle we must first know the equation for the circumference of a circle, which is .
We then plug in the given value for the radius, yielding .
We multiply to find the value for the circumference is .
Thus answer is .
Example Question #43 : Geometry
What is the circumference of a circle with a radius of ?
To find the circumference of a circle given the radius, we must first know the equation for the circumference of a circle which is
We then plug in for the radius into the equation yielding
We multiply to find the value for the circumference is
The answer is .
Example Question #46 : Perimeter Of A Figure
Find the circumference of a circle with a diameter of 4 meters.
meters
meters
meters
meters
meters
meters
The formula for circumference is:
where is the radius of our circle
In this case, we were given the diameter of meters. Thus, we know that the radius is meters (since the diameter is twice the radius). Plugging this into the formula, we have:
meters.