Semester Geometry

Find the number of degrees in the third angle of the triangle

• 155

• 112

• 74

• 68

In the diagram, DC is the perpendicular bisector of AB and CE is the angle bisector of <ACD.  Find the measure of <ACE

• 90

• 45

• 30

• 15

Find the measure of ∠ACD. 

• 130

• 115

• 65

• 50

Which of the following transformations carry this regular polygon onto itself?

• Reflection across line l

• Rotation of 45° counterclockwise

• Rotation of 60° counterclockwise

• Rotation of 72° counterclockwise

Determine if the two triangles are congruent. If they are congruent, choose the best method for proving congruence.

• ASA

• Not Congruent

• SSS

• SAS

Determine if the two triangles are congruent. If they are congruent, choose the best method for proving congruence.

• SAS

• SSS

• ASA

• AAS

Find the length of segment EC to one decimal place.

• .5

• 2.2

• 19

• 22.9

The postulate or theorem that can be used to prove that the two triangles are similar is _____.

• SAS Similarity Theorem

• SSS Similarity Theorem

• AA Similarity Postulate

• ASA Congruence Theorem

Prove △ABC =△ACD by SSS

• AC=CD

• DA=BC

• AB=AD

• DB=AC

What is the missing step in the proof?

• m<3+m<4=180

• m<3+m<4=90

• m<3+m<4=360

• m<3=m<4