corollary is a theorem, you can use it as a reason in a proof. Theorem 4-5 Theorem If a line bisects the vertex angle of an isosceles triangle, then the line is also the perpendicular bisector of the base. If . . . AC BC and ACD BCD Then . . . CD AB and AD BD You will prove Theorem 4-5 in Exercise 26. C A D B C A D B A 54 x B D C 9 8 7 6 5 4 3 ...
2. ∠ABD ≅ ∠BDC Alternate Interior Angle Theorem (Theorem Proof B) 3. ∠ADB ≅ ∠DBC Alternate Interior Angle Theorem (Theorem Proof B) 4. DB ≅ DB Reflexive Property 5. ΔADB ≅ ΔCBD ASA Postulate 6. ∠A ≅ ∠C CPCTC ∴ The opposite angles of a parallelogram are congruent. What key should be used while working in the man command if you want to go to the end of the document? When interpreting the SYNOPSIS of a command found on a man page, the "|" means: The items it separates cannot be used together.
Which of these are theorems that can be used to prove two triangles are congruent? Select Yes or No for A–C. A. SSA Yes No B. AAS Yes No C. SAS Yes No 2. Line D bisects ∠ABC, m∠ABD = 4x, and m∠DBC = x + 36. Choose True or False for each statement. A. m∠ABC = 48° True False B. m∠ABC = 96° True False C. m∠DBC = 48° True False 3.