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Mathematics 13 Online
OpenStudy (anonymous):

Seventeen spires grace the majestic Cadet Chapel at the Air Force Academy in Colorado Springs, CO. Each spire is an isosceles triangle with a 40° vertex angle. Find the measure of each base angle.http://media.education2020.com/EVresources/647-04-05-00-00_files/i0240001.jpg

OpenStudy (anonymous):

70 degrees each. im in e2020 too...

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