# Midterm Review - Definitions, Theorems And Postulates

12 Questions | Total Attempts: 151  Settings  Geometry Review of 1st semester

• 1.
Which congruency theorem/postulate proves that the triangles are congruent?
• A.

ASA

• B.

SAS or SSS

• C.

Not possible

• 2.
Name the reason for the following conclusion.If AC is perpendicular to BD, why is angle ADB = to angle CDB?
• A.

Perpendicular lines form right angles

• B.

Perpendicular lines form congruent angles.

• C.

Angles ADB and CDB form a linear pair

• D.

Angles ADB and CDB are supplementary

• 3.
Why is angle ABC > angle ABD?
• A.

Whole > Part

• B.

GAGS

• C.

Transitive Property

• D.

Exterior Angle > Remote Interior angle

• E.

Triangle Inequality Theorem

• 4.
Why is angle CDB > Angle A?
• A.

Whole > Part

• B.

GAGS

• C.

Transitive Property

• D.

Exterior Angle > Remote Interior Angle

• E.

Triangle Inequality Theorem

• 5.
What series of reasons will give you DBC < BDC if you are given ABD > DBC?
• A.

GAGS, Exterior Angle Theorem

• B.

Exterior Angle Theorem, Transitive Property

• C.

Triangle Inequality Theorem, Substitution

• 6.
What additional information would need to be given to prove Triangle EGF is congruent to Triangle IGH by ASA if you are given G is the midpoint of HF
• A.

G is also the midpoint of HI

• B.

EF = IH

• C.

Angle F = Angle H

• D.

Angle E = Angle I

• E.

EI is perpendicular to FH

• 7.
If you are given that G is the midpoint of FH and EI, what reason tells you that Triangle EFG is congruent to Triangle IHG?
• A.

SSS

• B.

ASA

• C.

SAS

• 8.
If BD is the perpendicular bisector of side AC, what reason tells you that triangle ADB is congruent to triangle CDB?
• A.

SSS

• B.

ASA

• C.

SAS

• 9.
If BD is perpendicular to AC and bisects angle ABC, what reason says triangle ADB is congruent to triangle CDB?
• A.

SSS

• B.

ASA

• C.

SAS

• 10.
If Triangle ABC is isosceles with AB = CB, what angles can you say are congruent by Isosceles Triangle Theorem?
• A.

Angle A = Angle C

• B.

Angle ABD = Angle CBD

• C.

• 11.
If AF = CE, what reason tells you that AE = CF?
• A.

Whole > Part

• B.

Isosceles Triangle Theorem

• C.

• D.

• E.

CPCTC

• 12.
If you were given Triangle AFB congruent to Triangle AFD, what reason would tell you that angle ABF = Angle AD?
• A.

Isosceles Triangle Theorem

• B. Back to top