We found 426 resources with the concept radius
Formulas for Circle Area and Circumference: Simple as Pie
3 mins 6th - 7th CCSS: Designed
New ReviewCalculating 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...
Find the Radius of a Circle Given the Area (Example)
4 mins 7th - 11th CCSS: Adaptable
New ReviewWork backwards if you dare. Scholars view a video to learn how to apply the area formula of a circle to solve problems. They watch an example where the focus is finding the radius of a circle given its area, requiring the use of inverse...
Equation of a Circle
8 mins 9th - 11th CCSS: Adaptable
New ReviewHow can you make a circle with x's and y's? A video tutorial explains how to write the equation of a circle with a center at the origin. The tutorial also demonstrates how to analyze the equation. Following the lesson, pupils use the...
Radius and Tangent – Proof
3 mins 6th - 12th CCSS: Adaptable
A tangent line always finds its place at a 90-degree angle to a radius. Many scholars struggle with the proof of the seemingly simple statement. A brief video demonstrates the reasoning behind the proof before pupils practice applying it...
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.