Surface Area of Cones
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In this geometry instructional activity, 10th graders calculate the surface area of a cone given the radius and height. There are 8 questions with an answer key.
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Surface Area of Three-Dimensional Figures
Lateral area and surface area are simple concepts, but calculating them is not as easy! Using formulas, learners calculate lateral area and surface area for the same three-dimensional figures. The resource discusses the formula variables...
8th - 11th Math CCSS: Adaptable
New Review Cones: Lesson
Just how much ice cream will the cone hold? The video provides the formulas to find the surface area and the volume of cones. Using example problems, the section of a geometry playlist shows how to use the formulas to find the surface...
4 mins 8th - 11th Math CCSS: Adaptable
New Review Surface Area of Pyramids and Cones
Discover formulas for surface area by analyzing nets. Using graph paper and nets, young scholars work toward deriving the formulas. They first derive the formula for a pyramid and then connect their processes to finding a formula for cones.
9th - 12th Math CCSS: Designed
How Do You Find the Lateral and Surface Areas of a Cone?
The lateral surface area of a cone. Hmmm, what does that mean? Oh, it means the part you see if the cone was sitting on a flat surface, so it does not include the base. But if you want to include the base then it would be finding the...
5 mins 7th - 10th Math
How Do You Find the Lateral and Surface Areas of a Cone if You Don't Know the Slant Height?
Did you know you can use the Pythagorean theorem to find the slant height of a cone? You can! Just watch this tutorial and see how you can find the lateral and surface area of a given cone using slant height and the Pythagorean theorem.
7 mins 9th - 11th Math