two sides of a triangle have the same length. the third side measures 3 m less than twice the common length. the perimeter of the triangle is 21 m. what are the lengths of the three sides?
two sides of a triangle have the same length. the third side measures 3 m less than twice the common length. the perimeter of the triangle is 21 m. what are the lengths of the three sides?
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter8: Areas Of Polygons And Circles
Section8.CR: Review Exercises
Problem 14CR: One side of a triangle is 10 cm longer than a second side, and the third side is 5 cm longer than...
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