We found 879 reviewed resources for circumference of circles
Area and Circumference of Circles
9 mins 8th - 10th CCSS: Adaptable
Don't go around and around, help your class determine amounts around and in a circle with a video that connects circumference to the perimeter or the distance around an object. The resource includes 14 questions dealing with circles and...
The Circumference of a Circle and the Area of the Region it Encloses
6th - 8th CCSS: Designed
Bring your math class around with this task. Learners simply identify parts of a given circle, compute its radius, and estimate the circumference and area. It is a strong scaffolding exercise in preparation for applying the formulas for...
Find the Circumference of a Circle
4 mins 6th - 9th CCSS: Designed
Solving for circumference is an easy as one, two, pi! Show your learners what pi is and how to use it in an equation. This second video in a series uses the circumference and the radius as a ratio to show that 3.14 is a constant in these...
Discovering the Formulas for Circumference and Area of a Circle
9th - 12th CCSS: Designed
Find formulas using direct measurements and reconstruction. Groups use diagrams of circles and measure their circumferences. With several examples, classmates determine the constant of variation, pi. Pupils continue exploring circle...
How Do You Find the Area of a Sector of a Circle?
4 mins 6th - 9th
How do you find the area of a sector of a circle? Use the formula of course. Then all you have to do is plug in the given values and do the math. Make sure you are following the rules of order of operation. The instructor will walk you...
Calculating Area of a Circle: Lesson
2 mins 6th - 11th CCSS: Adaptable
It really is as easy as pi. The segment of a massive geometry playlist points out that the formula for the area of a circle is a relatively simple one. Using the formula, the presenter shows examples of finding the area of circles.
Circumference and Diameter Relationship
6th - 8th CCSS: Designed
With a ruler and a piece of string, geometers measure the circumference of a circular object. Tracing and folding it, they find the diameter of the resulting circle so that they can relate it to the circumference. It is recommended that...
Formulas for Circle Area and Circumference: Simple as Pie
3 mins 6th - 7th CCSS: Designed
Calculating circumference is as easy as pi times diameter. A short video explains how to measure pie tins using the diameter. It also describes the relationship between diameter and circumference. Using the knowledge, scholars consider...