Activity
Other

Calculating the Surface Area of a Cone

For Students 9th - 10th
This site explains a method for finding the surface area of a cone. It has several plane geometry formulas.
Website
Cool Math

Coolmath: Precalculus Basic Formulas to Know

For Students 9th - 10th Standards
This CoolMath resource provides an introduction to some Precalculus formulas.
Handout
Cuemath

Cuemath: Area of a Circle

For Students 9th - 10th Standards
This mini-lesson explores the area of a circle. Provides a definition, examples, and practice questions with answers.
Activity
Texas A&M University

Wtamu Virtual Math Lab: Beginning Algebra: Formulas

For Students 9th - 10th
This tutorial will show you how using formulas can help you solve problems. Include formulas for various geometric shapes and steps showing how to use them.