Busy Definitions
If two numbers are equal, you can replace one with the other in an expression
What is the substitution property of equality?
If a = b, then b = _
What is a?
if a=b, then b=a
What is the symmetric property of equality?
What is the symmetric property of equality?
If AB ≅ BC, then the length of AB is equal to the length of BC
What is the definition of congruence?
A number is equal to itself
What is the reflexive property of equality?
If a = b, then a + c = ___
What is b + c?
If ab, then ac = bc
What is the multiplication property of equality?
If AB ≅ CD and CD ≅ EF, then AB ≅ EF
What is the transitive property of congruence?
B, if AC is a line segment and AB ≅ BC
What is the definition of a midpoint?
If two line segments are congruent to the same line segment, those two line segments are equal
What is the transitive property of congruence?
If a = b and ___, then a = c
If a=b and b=c, then a=c
What is the transitive property of equality?
If AB ≅ CD then CD ≅ AB
What is the symmetric property of congruence?
x = 2n, for some integer n
What is the definition of an even number?
Multiply the number outside the parentheses with each term inside the parentheses
What is the distributive property?
a _ a
What is =?
If a=b, then a/c = b/c (c is not 0)
If a=b and b=c, then a=c
What is the transitive property of equality?
m∠1 + m∠2 = 180°
What is the definition of supplementary angles?
The same number can be added to or subtracted from both sides of an equation
What is the addition-subtraction property of equality?
a(b+c) = ______
What is ab + ac?
AB ≅ AB
What is the reflexive property of congruence?
AB ≅ AB
What is the reflexive property of congruence?
m∠1 + m∠2 = 90°
What is the definition of complementary angles?