Classifying Triangles
A Triangle with 2 congruent sides is what type of triangle?
A. Scalene
B. Equiangular
C. Isosceles
D. Equilateral
C. Isosceles
The Triangle Angle Sum Theorem says that the 3 angles of a triangle, will always add up to _______ degrees?
180
If triangle ABC is congruent to Triangle DEF, what angle is congruent to Angle B?
Angle E
Which of the below reasons would be used to prove that 2 sides are congruent?
A. Definition of Angle Bisector
B. Alternate Interior Angles
C. Definition of Midpoint
D. Vertical Angles
C. Definition of Midpoint
Which of the following reasons used to prove that angles are congruent requires parallel lines?
A. Vertical Angles
B. Definition of Angle Bisector
C. Reflexive Property
D. Alternate Interior Angles
D. Alternate Interior Angles
A triangle with 3 congruent angles is called what type of triangle?
Equiangular
Look at triangle EFG. How many degrees is angle F?
70 degrees
If Triangle ABC is congruent to Triangle DEF, what side is congruent to Side CA?
If 2 angles and an included side are congruent between 2 triangles, which shortcut could be used to prove the triangles are congruent?
A. SAS
B. ASA
C. AAS
D. SSA
B. ASA
If two angles and a side opposite them are congruent between 2 triangles, which shortcut could be used to prove the triangles are congruent?
A. SSS
B. AAS
C. ASA
D. SAS
B. AAS
Look at Picture 1, how many degrees is Angle 3?
80 Degrees
Look at Triangle ABC. What equation would I use to solve for X?
4x + 9 = 60
Look at triangle DEF. What equation would I use to solve for X?
A. 3x - 2 = 6x
B. 3x-2 + 6x = 180
C. 7x - 3 = 6x
D. 3x - 2 + 7x - 3 + 6x = 180
3x - 2 + 7x - 3 + 6x = 180
See Triangle LMN. What side is the hypotenuse of the triangle?
Side LN
CPCTC stands for what?
A. Congruent Parts of Corresponding Triangles are Congruent
B. Corresponding Parts of Congruent Triangles are Congruent
C. Congruent Parts of Congruent Triangles are Corresponding
D. Congruent Parts of Congruent Triangles are Congruent
B. Corresponding Parts of Congruent Triangles are Congruent
Look at picture 1, how many degrees is Angle 1?
63 Degrees
Look at Picture 2. What equation would I use to solve for X?
6x + 4x-1 = 9x-2
Look at picture 3. If triangle ABC is congruent to triangle DEF, what is the length of Side FE?
6 cm
See Picture 5, what shortcut could prove the two triangles are congruent?
SSS
See Picture 6. What shortcut could be used to prove the Triangles are congruent?
A. SSS
B. SAS
C. ASA
D. AAS
D. AAS
What is the correct classification of Triangle XYZ?
A. Equiangular
B. Acute
C. Right
D. Obtuse
D. Obtuse
Look at triangle BCD. If angle B = 4x +1, Angle C = 5x-7, and Angle D = 3x - 9, what equation would I use to solve for X?
5x - 7 = 3x - 9
Look at Picture 4. Write a valid congruency statement for the 2 triangles?
Multiple Answers TUV = XYZ
If line BD bisects angle ABC, which is true?
A. Angle ABC = Angle ABD
B. Angle ABD = Angle DBA
C. Angle ABD = Angle CBD
D. Angle ABC = Angle CBA
C. Angle ABD = Angle CBD
See Pic 7, if line CB bisects angle ABD, then Angle ________ is congruent to Angle ___________.
Angle ABC = Angle DBC