Consider an -sided regular polygon inscribed in a circle of radius Join the vertices of
Chapter 4, Problem 90(choose chapter or problem)
Graphical Reasoning Consider an n-sided regular polygon inscribed in a circle of radius r. Join the vertices of the polygon to the center of the circle, forming n congruent triangles (see figure).
(a) Determine the central angle \(\theta\) in terms of n
(b) Show that the area of each triangle is \(\frac{1}{2} r^{2} \sin \theta\)
(c) Let \( A_{n}\)\) be the sum of the areas of the n triangles. Find \(\lim _{n \rightarrow \infty} A_{n}\)
Text Transcription:
Theta
\frac{1}{2} r^{2} \sin \theta
\lim _{n \rightarrow \infty} A_{n}
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