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3. Find the measure of the unknown side to the nearest tenth. a) b) E D 10 m 40° 20 m d lified cosine law for the remaining F 36 ft B 42° 52 ft b

3. Find the measure of the unknown side to the nearest tenth. a) b) E D 10 m 40° 20 m d lified cosine law for the remaining F 36 ft B 42° 52 ft b

Elementary Geometry For College Students, 7e
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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1. For AABC, the cosine law for side a is: this formula as a model to write the cosine law for the remaining sides in the triangle. a²=b² +6²-2becos A Without using your notes 2. For AABC, the modified cosine law for angle A is:cos A=- notes, use this formula as a model to write the modified cosine law for the remaining b²+c²-a² 2bc 3. Find the measure of the unknown side to the nearest tenth. b) E D 10 m 40° 20 m Cosine Law Practice d F c) In AABC given that ZA=38°, b=20m, and c=15m, find a 36 ft B 42° A Without us 52 ft b d) In AABC giv a = 40 mm,
Transcribed Image Text:1. For AABC, the cosine law for side a is: this formula as a model to write the cosine law for the remaining sides in the triangle. a²=b² +6²-2becos A Without using your notes 2. For AABC, the modified cosine law for angle A is:cos A=- notes, use this formula as a model to write the modified cosine law for the remaining b²+c²-a² 2bc 3. Find the measure of the unknown side to the nearest tenth. b) E D 10 m 40° 20 m Cosine Law Practice d F c) In AABC given that ZA=38°, b=20m, and c=15m, find a 36 ft B 42° A Without us 52 ft b d) In AABC giv a = 40 mm,
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