Below you see four triangles with some angles / sides unknown. Correctly describe what technique to use to get sarted: Remember that you are allowed multiple submissions - Consider resubmitting this problem until you have it correct before proceeding on to the later problems. 4 A 2 A 3 B 7/3 2 4 C T/3 2 A D T/6 2 Triangle A Use the law of cosine to determine. the unknown side length. Triangle B Use the law of cosines and solve for the cosine of an unknown angle. Then use inverse cosine to find the angle. Triangle C the angles of a triangle must sum to pi radians. Use this to solve for the unknown angle. Use the law of sines to get the unknown side-lengths. Triangle D Use the law of sines to determine sin(alpha). Since the side length opposite alpha is not the longest side length, alpha must be acute. Use inverse sine to determine alpha.
Below you see four triangles with some angles / sides unknown. Correctly describe what technique to use to get sarted: Remember that you are allowed multiple submissions - Consider resubmitting this problem until you have it correct before proceeding on to the later problems. 4 A 2 A 3 B 7/3 2 4 C T/3 2 A D T/6 2 Triangle A Use the law of cosine to determine. the unknown side length. Triangle B Use the law of cosines and solve for the cosine of an unknown angle. Then use inverse cosine to find the angle. Triangle C the angles of a triangle must sum to pi radians. Use this to solve for the unknown angle. Use the law of sines to get the unknown side-lengths. Triangle D Use the law of sines to determine sin(alpha). Since the side length opposite alpha is not the longest side length, alpha must be acute. Use inverse sine to determine alpha.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:Below you see four triangles with some angles / sides unknown. Correctly describe what technique to use to get sarted: Remember that you are allowed multiple submissions -
Consider resubmitting this problem until you have it correct before proceeding on to the later problems.
4
3
A
2
A
B
T/3
2
4
TT/3
2
A
C
D
Triangle A
Use the law of cosine to determine. the unknown side length.
Triangle B
Use the law of cosines and solve for the cosine of an unknown
angle. Then use inverse cosine to find the angle.
Triangle C
the angles of a triangle must sum to pi radians. Use this to solve
for the unknown angle. Use the law of sines to get the unknown
side-lengths.
Triangle D
Use the law of sines to determine sin(alpha). Since the side length
opposite alpha is not the longest side length, alpha must be
acute. Use inverse sine to determine alpha.
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