Chapter 2: Q1. (page 71)
Name or state the postulate, property, definition or theorem that justifies the statement.
If , then .
Short Answer
The property that justifies the statement is Property of algebra.
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Chapter 2: Q1. (page 71)
Name or state the postulate, property, definition or theorem that justifies the statement.
If , then .
The property that justifies the statement is Property of algebra.
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State the converse of each conditional. Is the converse true or false?
If a number is divisible by 6, then it is divisible by 3.
Provide a counterexample to show that each statement is false. You may use words or draw a diagram.
If a line lies in a vertical plane, then the line is vertical.
State the hypothesis and the conclusion of each conditional.
If , then
.
State which postulate, definition, or theorem justifies the statement about the diagram.

If D is the midpoint of , then .
Justify each statement with a property from algebra or property of congruence .
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