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In figure 5.21, PQRS is a regular tetrahedron of side 4 cm and M is the midpoint of RS: Fig. 5.21 (a) Show that
In figure 5.21, PQRS is a regular tetrahedron of side 4 cm and M is the midpoint of RS: Fig. 5.21 (a) Show that PM is 23 cm long, and that APMQ is isosceles. Calculate the angle between planes PSR and QRS. (c) Calculate the angle between line PQ and plane QRS.
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Fundamentals of Ethics for Scientists and Engineers
Authors: Edmund G. Seebauer, Robert L. Barry
1st Edition
9780195698480, 195134885, 195698487, 978-0195134889
