Please explain cosine law first then solve the question. Provide handwritten answer only. no typed answer needed Q16: Find angle B for the roof truss shown in the figure below. Hint: Use Cosine law.1009 ft.11 ft6 ft

The roof torus is given in the figure. To find the angle B using the law of cosines.

Answered: Find angle B for the roof truss shown…

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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Find angle B for the roof truss shown in the figure below. Hint: Use Cosine law. 0 11 A 6 ft