7. Restate each of the following assertions in "if..., then..." form. (a) Perpendicular lines must intersect. We will occasionally find good reason to formulate our proofs this way even erally not good practice. Chapter 2 Axiomatic Systems and Incidence Geometry (b) Any two great circles on S² intersect. (c) Congruent triangles are similar. (d) Every triangle has angle sum less than or equal to 180°.
7. Restate each of the following assertions in "if..., then..." form. (a) Perpendicular lines must intersect. We will occasionally find good reason to formulate our proofs this way even erally not good practice. Chapter 2 Axiomatic Systems and Incidence Geometry (b) Any two great circles on S² intersect. (c) Congruent triangles are similar. (d) Every triangle has angle sum less than or equal to 180°.
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter2: Parallel Lines
Section2.CT: Test
Problem 3CT: To prove a theorem of the form "If P, then Q" by the indirect method, the first line of the proof...
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