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

100

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

100

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

100

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

100

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

100

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

200

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

200

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

200

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

200

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

200

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

300

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

300

What 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.

300

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

300

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

300

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

400

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

400

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

400

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

400

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

400

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

500

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

500

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

500

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

500

Prove that ∆KLN≅∆MNL. #5 p.67

500

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

Unit D: Congruent Triangles REVIEW

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