EXAM 3 RULES & DEFINITIONS SHORMANN ALGEBRA 2
FREQUENTLY TESTED ACTUAL QUESTIONS WITH
CORRECT ANSWERS
Question 1.
Complex conjugate
ANSWER
The complex conjugate of a + bi equals a - bi
Question 2.
Rule
ANSWER
Question 3.
Dummy variable
ANSWER
Question 4.
Similar Triangle Theorems*
sss
*We will use upper-case letters in triangle congruency theorems and lower case letters in triangle
similarity theorems. We do this because, in trian-
gle congruency theorems, we are comparing congruent sides (equal lengths), while in triangle
similarity theorems, we are comparing proportional sides (equal ratios).
ANSWER
Two triangles are similar if the lengths of their corresponding sides are proportional to each
other.
, Question 5.
Similar Triangle Theorems*
sas
*We will use upper-case letters in triangle congruency theorems and lower case letters in triangle
similarity theorems. We do this because, in trian-
gle congruency theorems, we are comparing congruent sides (equal lengths), while in triangle
similarity theorems, we are comparing proportional sides (equal ratios).
ANSWER
Two triangles are similar if the lengths of two corresponding sides are proportional, and the
angles between those sides are congruent
Question 6.
Similar Triangle Theorems*
aaa
*We will use upper-case letters in triangle congruency theorems and lower case letters in triangle
similarity theorems. We do this because, in trian-
gle congruency theorems, we are comparing congruent sides (equal lengths), while in triangle
similarity theorems, we are comparing proportional sides (equal ratios).
ANSWER
Two triangles are similar if the angles in one triangle are congruent to the angles in the other
triangle.
Question 7.
CPCTC
ANSWER
Acronym for Corresponding Parts of Congruent Triangles are Congruent.
Question 8.
~
ANSWER
Symbol used to identify two triangles as similar. Not to be confused with its use for describing
equivalent sets (Lesson 27) or in logic as shorthand for "not" (Lesson 48).
FREQUENTLY TESTED ACTUAL QUESTIONS WITH
CORRECT ANSWERS
Question 1.
Complex conjugate
ANSWER
The complex conjugate of a + bi equals a - bi
Question 2.
Rule
ANSWER
Question 3.
Dummy variable
ANSWER
Question 4.
Similar Triangle Theorems*
sss
*We will use upper-case letters in triangle congruency theorems and lower case letters in triangle
similarity theorems. We do this because, in trian-
gle congruency theorems, we are comparing congruent sides (equal lengths), while in triangle
similarity theorems, we are comparing proportional sides (equal ratios).
ANSWER
Two triangles are similar if the lengths of their corresponding sides are proportional to each
other.
, Question 5.
Similar Triangle Theorems*
sas
*We will use upper-case letters in triangle congruency theorems and lower case letters in triangle
similarity theorems. We do this because, in trian-
gle congruency theorems, we are comparing congruent sides (equal lengths), while in triangle
similarity theorems, we are comparing proportional sides (equal ratios).
ANSWER
Two triangles are similar if the lengths of two corresponding sides are proportional, and the
angles between those sides are congruent
Question 6.
Similar Triangle Theorems*
aaa
*We will use upper-case letters in triangle congruency theorems and lower case letters in triangle
similarity theorems. We do this because, in trian-
gle congruency theorems, we are comparing congruent sides (equal lengths), while in triangle
similarity theorems, we are comparing proportional sides (equal ratios).
ANSWER
Two triangles are similar if the angles in one triangle are congruent to the angles in the other
triangle.
Question 7.
CPCTC
ANSWER
Acronym for Corresponding Parts of Congruent Triangles are Congruent.
Question 8.
~
ANSWER
Symbol used to identify two triangles as similar. Not to be confused with its use for describing
equivalent sets (Lesson 27) or in logic as shorthand for "not" (Lesson 48).
