Solve the resulting triangles if the given changes are made in the indicated examples of this section.
Question:
Solve the resulting triangles if the given changes are made in the indicated examples of this section.
In Example 3, solve the triangle if 49.3 is changed to 54.3.
Data from Example 3
For a triangular roof truss with sides 49.3 ft, 21.6 ft, and 42.6 ft, find the angles between the sides. See Fig. 9.71.
First, we let the sides be a, b, and c, with opposite angles of A, B, and C. Then, because the longest side is 49.3 ft, we first solve for angle A. Because a2 = b2 + c2 − 2bc cos A,
Now we can use the law of sines to find angle B:
Angle C can be found by subtracting from 180°: C =180° − 94.6° − 25.9° = 59.5°.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Related Book For
Basic Technical Mathematics
ISBN: 9780137529896
12th Edition
Authors: Allyn J. Washington, Richard Evans
Question Posted: