Engineering Board Exam Reviewer · Spherical Trigonometry · medium
A spherical triangle on a sphere of radius 10 cm has a spherical excess of 30°. Find its area in cm2.
- 50 π/3 52.36
- 100 π/3 104.72
- 25 π/3 26.18
- 500 π/3 523.6
Answer
A. 50 π/3 52.36
Solution
Area=E,R2 with E in radians: π/6(10)2=50π/3 52.36 cm2.
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