Geometry Polygons and Congruence

x = 

• 87

• 42

• 17

• 8

The two opposite (that is, non-adjacent) angles formed by two intersecting lines. ________ is a relationship between pairs of angles, so one angle cannot be called ________. Angles that form a ________ pair are always congruent.

• corresponding angle

• right angle

• verticle angle

• straight angle

What is the measure of angle L?

• ∠L=51°

• ∠L=129°

• ∠L=180°

• ∠L=39°

Angles between a pair of lines that switch sides of a third intersecting line (called a transversal). For example, in the diagram below, the shaded angles are _________________________. If the lines intersected by the transversal are parallel, then the _________________________ are congruent.

• congruent

• right angle

• alternate interior angle

• complementary angle

Given:  l ∥m 
Prove:  ∠6 ≅∠4
Which statement is incorrect?

• ∠1 ≅ ∠6

• ∠6 ≅ ∠5

• ∠5 ≅ ∠4

• ∠1 ≅ ∠8

Which statement is not true if ∆ABC≅∆CDA?

• AB≅CD

• CD≅CB

• AC≅AC

• ∠CAD ≅ ∠ACB

Which statement proves ∠ACB ≅∠EGF?

• SAS

• SSA

• HL

• CPCTC

Given:
∠BAP≅∠KEP
Prove:
∆ABP≅∆EKP
What information is needed to prove triangle congruence?

• BP≅KP

• AB≅KP

• ∠ABP≅∠EKP

• ∠APB≅∠KPE

Which similarity statement is true given the figure below?

• ∆ABD∼∆CAD∼∆CBA

• ∆CDA∼∆ABD∼∆BAC

• ∆DBA∼∆CAD∼∆BCA

• ∆DCA∼∆DBA∼∆BCA

• 70
• 110
• 60
• 180