Find the radius r of the incircle for triangle ABC given three sides 5 cm., 6 cm., and 7 cm. HINT: Use Heron's formula to find the area of the triangle

Elementary Geometry For College Students, 7e
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ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter7: Locus And Concurrence
Section7.2: Concurrence Of Lines
Problem 19E: Draw an obtuse triangle and, by construction, find its orthocentre. HINT: You will have to extend...
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Find the radius r of the incircle for triangle ABC given three sides 5 cm., 6 cm., and 7 cm. HINT: Use Heron's formula to find the area of the triangle. 
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