The pennant below is in the shape of an isosceles triangle. The equal sides each measure 20 inches, the altitude measures x + 10 inches and the base measurews 4x inches. What is the length of the base?

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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The pennant below is in the shape of an isosceles triangle. The equal sides each measure 20 inches, the altitude measures x + 10 inches and the base measurews 4x inches. What is the length of the base?

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