The perpetrator’s arm makes a spray of mud from 20 to 22 inches away from his/her shoulder. The spray of mud makes a 90-degree angle.  Calculate the length of the spray. What are the two acute angles in the triangle?

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter1: Vectors
Section1.4: Applications
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1) The perpetrator’s arm makes a spray of mud from 20 to 22 inches away from his/her shoulder. The spray of mud makes a 90-degree angle.  Calculate the length of the spray. What are the two acute angles in the triangle?

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