1. Which of the following is not an inequality theorem for one triangle? A. Triangle Inequality Theorem 1 (Ss¬Aa) B. Triangle Inequality Theorem 3 (S1 +S2 > S3) C. Exterior Angle Inequality Theorem D. Hinge Theorem 2. which of the following angles is an exterior angle of ARPY? A. L2 B. 23 C. 4 D. 27 3. Does this triangle with these side lengths exist? 12, 9, 6 a. Yes b. No c. I don't know d. Maybe

Answer the following.

Prove: ABAC AEDC Statements Reasons 1. Cs the midpoint of AD and BE 1. 2. BC EC 2. 3. 3. Definition of midpoint B 4. 5. ABAC AEDC 6. Possible Statements and Reasons: A. SAS B. SSS C. Given D. Reflexive Property E. Vertical Angles Theorem F. AB DE G. ZACB ZDCE H. AC DC I. Definition of midpoint ate Education" Inc.

1.Answer the question

Theorem: The sum of the measure of the angles of any triangle is 180°. Proof: Given: The top line (that touches the top of the triangle) is parallel to the base of the triangle. Prove: mz1 + m3 + m2 = 180° 4 1 2 A Statements Reason 1. m24 = m/1 1. 2. m25 = mz2 2. 3. 3. Three angles form one side of the straight line |4. 4. mz1+ mz3 + m2 = 180°