Radius Teacher Resources
Find Radius educational lesson plans and worksheets
Showing 73 - 96 of 2,760 resources
How Do You Find the Area of a Circle if You Know the Diameter?
Do you know the formula to find the area of a circle? Do you know the value of pi? Do you know what the relationship is between diameter and radius? Yes? Then you can solve this problem. If your scholars don't know this formula then this...
4 mins 6th - 8th Math
How Do You Find the Volume of a Cone?
The formula to find the volume of a cone is volume equals one-third times the base times the height. The base can be found by using the formula to find the area of a circle: base equals pi times radius squared. So it seems that the area...
5 seconds 6th - 10th Math
How Do You Find the Volume of a Cylinder?
What is the formula to find the volume of a cylinder? Here's the formula - volume equals base times height, and the base of a cylinder is base equals pi times radius squared. If the is a given value for radius, and a given value for...
5 mins 6th - 10th Math
How Do You Find the Slant Height of a Cone?
Use the Pythagorean theorem formula to find the slant height of a cone. If the height of the cone and the radius of the base are given, using the Pythagorean theorem formula will be a piece of cake. Just plug in the values given and solve.
5 mins 9th - 10th Math
How Do You Find the Surface Area of a Sphere?
What do a basketball, a bowling ball, and a ping pong ball all have in common? They are spheres. So how do you measure the surface area of a sphere? Yes, there is a formula and all you have to do is know one measurement of the sphere to...
3 mins 6th - 12th Math
How Do You Find the Radius of a Circle if You Know the Area?
Given the area of a circle and a formula, is it possible to find the radius of the circle? Of course it's possible! Use the formula for the area of a circle, plug in the known values and do the math. The solution has been found.
3 mins 6th - 10th Math
Right Triangles Inscribed in Circles II
So many times the characteristics of triangles are presented as a vocabulary-type of lesson, but in this activity they are key to unraveling a proof. A unique attack on proving that an inscribed angle that subtends a diameter must be a...
9th - 10th Math CCSS: Designed
Solving Problems Involving Chords, Radii, Tangents, Secants, and Arcs Within the Same Circle
Tenth graders explore the concept of circles. In this circles lesson, 10th graders discuss settings in their lives where they encounter circles. Students work through problems in groups involving finding lengths of diameters, secants,...