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ERROR ANALYSIS Describe and correct the error in finding the circumference of $\odot \mathrm{C}$ .

$C=9 \pi i n$

Geometry

Chapter 11

Circumference, Area, and Volume

Section 1

Circumference and Arc Length

Area and Perimeter

Surface Area

Volume

Circles

Brandon H.

May 10, 2021

A circle has circumference of 25 find the length of an arc whose central angle is 50

Johns Hopkins University

Piedmont College

Cairn University

Utica College

Lectures

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So this person used the formula of circumference as his two pi tens radius. However, we are told the diameter of the circle is nine. So, in fact the radius wouldn't be nine. It would be half of that, which is 4.5 and multiply times too. That makes nine, so that

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