Chapter 77, Problem 7A

For Exercises 7 through 20, compute angles to the nearer minute or hundredth degree.

Computing Angles of Rotation and Tilt Without Using Machining Formulas

Three views of a rectangular solid block are shown in which a compound-angular surface is to be machined. A pictorial view of the block with auxiliary lines required for computations is also shown. Do not use machining formulas in solving these exercises. For each of Exercises 7 through 10
a. Determine the angle of rotation, $\angle R.$
b. Determine the angle of tilt, $\angle T.$

Given: $\angle A=32°00\text{'}$
$\angle B=44°00\text{'}$