how that the circumference of the circle x² + y² = r² is 2πr. (Solve using the arc length formula.)
how that the circumference of the circle x² + y² = r² is 2πr. (Solve using the arc length formula.)
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.1: Angles
Problem 30E
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Show that the circumference of the circle x² + y² = r² is 2πr. (Solve using the arc length formula.)
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