True or false
proofs
pattern
100
If 
A True
B False;
B False;
100
Choose the property that justifies the following statement. If x = 2 and x + y = 3, then 2 + y = 3.
A Reflexive B Symmetric
C Transitive D Substitution
Substitution
100
A 
200
If AB + BC = AC, then AB = BC
A True
B False; Point B is not the midpoint of AC
B False; Point B is not the midpoint of AC
200
Choose the property that justifies the statement
If GH ≅ FD, then FD ≅ GH .
A Reflexive B Transitive
C Symmetric D Definition of congruent segments
Reflexive
200
5, –10, 15, –20
A 25 B -25 C 20 D 30
25
300
Determine the truth value of the conditional statement. If false, give a counterexample. If ∠A is an acute angle, then m∠A is 35.
A True
B False; if m∠A=55, then ∠A is an acute angle, but does not measure 35.
B False; if m∠A=55, then ∠A is an acute angle, but does not measure 35.
300
Choose the property that justifies the following statement. If x = y and y = z, then x = z.
A Conditional B Transitive
C Symmetric D Reflexive
Transitive
300
–2, 4, –8, 16, –32
A 64 B 48 C -64 D -48
64
400
If S, T, and U are collinear and ST = TU, then T is the midpoint of SU.
A True
B False; U is the midpoint of ST.
True
400
Choose the property that justifies the following statement. 
A Addition B Subtraction
C Division D Substitution
Division
400
Point S is between R and T.
A) RS + ST = RT C) RS + RT = ST
B) RS – ST = RT D) RT + ST = RS
A
500
The sum of the measures of any two sides of a triangle is ____ than the measure of the third side.
A greater B less
greater
500
When a linear equation is written in the form y=mx+b, m is the ____ of the line and b is the y-intercept?
A transversal B slope C x-intercept D point
slope