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Given: Triangle ABC has angle measures of mzA=3x+8, mzB = 3x, and mzC=3x+10 Prove: mzC 64 Statement: 1. ABC is a triangle. Reason: 1.
Given: Triangle ABC has angle measures of mzA=3x+8, mzB = 3x, and mzC=3x+10 Prove: mzC 64 Statement: 1. ABC is a triangle. Reason: 1. Given 2.mzA+m2B+mzC = 180 2. Triangle Angle 3.mzA=3x+8 4.mzB=3x 5.mzC=3x+10 7.9x+18=180 8.9x=162 Theorem 3. Given 4. Given 5. Given 6.3x+8+3x+3x+10=180 6. Substitution 7. Algebra 8. Subtraction 9.x=18 10. mzC 3(18) + 10 11. mzC=64 Property of Equality 9.[ ? ] 10. 11. Algebra
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Elementary And Intermediate Algebra Concepts And Applications
Authors: Marvin L. Bittinger, David J. Ellenbogen, Barbara L. Johnson
5th Edition
0321559444, 9780321559449
