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Unknown Type
Khan Academy: Practice: Area of a Circle Unknown Type
Khan Academy

Khan Academy: Practice: Area of a Circle

For Students 7th - 8th Standards
A practice quiz on calculating the area of a circle. Includes hints.
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Activity
Wtamu Virtual Math Lab: Beginning Algebra: Formulas 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.
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