1. The parts of spherical triangle are B=120°, C=150°, a=135°. What is thespherical excess? Compute the area if radius is 20cm?

We know: cos(A) = cos(a) sin(B) sin(C) − cos(B) cos(C) =cos(135°) sin(120°) sin(150°) −…

Answered: 1. The parts of spherical triangle are…

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter66: Introduction To Trigonometric Functions

Section: Chapter Questions

Problem 4A: A triangle has a base of 8.4 cm and a height of 12.5 cm. What is the area of the triangle?

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1. The parts of spherical triangle are B=120°, C=150°, a=135°. What is the spherical excess? Compute the area if radius is 20cm?