In triangle ABC, A = 45°, B = 75°, and C = 60°. Let points D, E, and F be the feet of the altitudes from A to BC, B to AC, and C to AB, respectively. Additionally, let points G, H, and I be the feet of the altitudes from A to EF, B to DF, and C to DE, respectively. %3D Find the degree measure of the angle HGI. 45 G E F 60 C

Elementary Geometry For College Students, 7e
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Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
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Chapter2: Parallel Lines
Section2.4: The Angles Of A Triangle
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In triangle ABC, A = 45°, B = 75°, and C = 60°. Let points D, E,
and F be the feet of the altitudes from A to BC, B to AC, and C to
AB, respectively. Additionally, let points G, H, and I be the feet of
the altitudes from A to EF, B to DF, and C to DE, respectively.
Find the degree measure of the angle HGI.
45
E
F
D
60 C
Transcribed Image Text:In triangle ABC, A = 45°, B = 75°, and C = 60°. Let points D, E, and F be the feet of the altitudes from A to BC, B to AC, and C to AB, respectively. Additionally, let points G, H, and I be the feet of the altitudes from A to EF, B to DF, and C to DE, respectively. Find the degree measure of the angle HGI. 45 E F D 60 C
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