1.The measure of an exterior angle of a triangle is always ____.
A.Greater than its adjacent interior angle. B.Less than its adjacent interior angle. C.Greater than either remote interior angle.

D.Less than either remote interior angle
2.which of the following angles is an exterior angle of TYP?
A.z4
B.z5
C.z6
D.z7

3.chris forms triangles by bending a 16-inch wire. Which of the following sets of wire lengths successfully form a triangle?
l.4 in,5 in, 6 in A.l,ll
ll.4 in,4 in,8 in B .lll,lV
lll.4 in,5 in,7 in C.ll,lV
lV.3 in,4 in,9 in D.l,lll

4.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

5.In ΔGUD,GU=DU and GD > DU. Which of the following statements may not be true?
A.GU < GD - DU
B.mLU>mLD
C.mLU>mLG
D.mLD=mLG

6.Which of the following properties will prove the parallelism of the illustration at the right?
A.Alternate interior angles are congruent
B.alternate exterior angles are supplementary
C.Corresponding angles are supplementary
D.Co-interior angles are congruant

7.In the figure, which of the following guarantees that m||n?
A.z1=z7
B.z3=z5
C.z4=z5
D.z4=z7

8.Which of the following guarantees that b||d?
A.z1=z6
B.z3=z5
C.z4=z5
D.z2=z8

9.Which of the following gruaratees that b||d?
A.z1 and z2 are congruent
B.z2 and z8 are congruent
C.z1 and z5 are supplementary
D.z7 and z8 are supplementary

10.What must be the measure of if mz1=80°,so that b||d ?
A.10°
B.80°
C.90°
D.100°​