12. Complete the two-column proof. 1 4. Drawing not to scale. Given: 2= 24, mL2 = 110° Prove: m3 - 70° Statement Proof 22 4,m22 =110° Given m 22 = mL4 Definition of congruent angles m 24 = 110° a. Definition of a linear pair (shown in m23 and m24 are a linear pair diagram) m43 and m 24 are Linear Pair Postulate supplementary m23+ m44 = 180° b. m43+110°- 180° Substitution Property %3D m23 - 70° C.
12. Complete the two-column proof. 1 4. Drawing not to scale. Given: 2= 24, mL2 = 110° Prove: m3 - 70° Statement Proof 22 4,m22 =110° Given m 22 = mL4 Definition of congruent angles m 24 = 110° a. Definition of a linear pair (shown in m23 and m24 are a linear pair diagram) m43 and m 24 are Linear Pair Postulate supplementary m23+ m44 = 180° b. m43+110°- 180° Substitution Property %3D m23 - 70° C.
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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