Engineering Board Exam Reviewer · Solutions to Oblique Triangles · medium
The sides of a triangle are 10, 14 and 18. Find the largest angle, in degrees.
- 95.74°
- 84.26°
- 50.7°
- 33.56°
Answer
A. 95.74°
Solution
The largest angle is opposite 18: C=102+142-182/2(10)(14)=-28/280=-0.1, so C=95.74°.
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