Types of Triangles  Angle Sum Properties  Congruence  Are the triangles congruent?  Mixed Review 

100What is a right triangle?
A triangle whose angles measure 30, 60, and 90 degrees.

100What is the sum of the interior angles of a triangle?
180 degrees

100What is SSS, SAS, ASA, AAS and HL?
The five triangle congruence theorems/postulates.

100Determine if the triangles are congruent. If they are, state the theorem that justifies the congruence and complete the congruence statement.
#8 p.34

100What are perpendicular lines?
Lines whose slopes are opposite reciprocals.

200What is an equilateral triangle?
A triangle whose side lengths measure 2 cm, 2 cm, 2cm.

200What is the measure of an exterior angle?
The sum of the two nonadjacent interior angles.

200What is SSA or AAA?
A theorem that does NOT always prove triangles congruent.

200Determine if the triangles are congruent. If they are, state the theorem that justifies the congruence and complete the congruence statement.
#10 p.48

200What is 28?
The value of x if a pair of vertical angles measures 5x degrees and 2(x +42) degrees.

300What is an obtuse triangle or what is an isosceles triangle?
A triangle whose angles measure 20, 140 and 20 degrees.

300What is 12?
The value of x if the measures of the interior angles of a triangle are 90 degrees, (4x  5) degrees, and (3x + 11) degrees.

300What is the acrynom for Corresponding Parts of Congruent Triangles are Always Congruent.
CPCTC

300Determine if the triangles are congruent. If they are, state the theorem that justifies the congruence and complete the congruence statement.
#11 p.50

300What is a converse?
A statement that switches the hypothesis and conclusion of a conditional statement.

400What is an equiangular triangle?
A triangle whose angles measure 60, 60, and 60 degrees.

400What is 115 degrees?
The measure of the exterior angle, (5x  10) degrees, when the two nonadjacent interior angles measure 40 degrees and 3x degrees.

400A pair of corresponding side lengths that are congruent if ∆CAT≅∆HAT.

400Determine if the triangles are congruent. If they are, state the theorem that justifies the congruence and complete the congruence statement.
#19 p.64

400Find the values of x and y.
#1 p.94

500What is a scalene triangle?
A triangle that never has any equal side lengths.

500What is 55 degrees?
The supplement of the exterior angle, (6x  7) degrees, when the nonadjacent interior angles are 2x degrees and (103  x) degrees.

500Complete the statements given ∆ALX≅∆GIW.
(p.25)

500Prove that ∆KLN≅∆MNL.
#5 p.67

500Find the perimeter of the triangle.
#11 p.94
