# Monthly Archives: September 2013

## HW#9

HW#9 p. 167 16-22 EVEN and 30-36 EVEN In general, for this assignment, you need to ask yourself: What kind of angle pair is the question giving you information about? What does the given info say about the angle pair? Supplementary, … Continue reading

## 9/16/13- Difference between Theorems and Definitions

Before we can do anything with theorems, we need our vocabulary to already have good, clear definitions.  A good, complete definition is our jumping off point for creating and proving theorems. One thing to note is that definitions aren’t things … Continue reading

## 9/12/13- Biconditionals and Converse Statements

Think about the definition of congruent angles:  Congruent angles have equal measures.  Now, rewrite that statement as an “If… then…” statement: 1.) If angles are congruent, then they have the same measure. or 2.) If angles have the same measure, … Continue reading

## HW#7

HW#7 p. 159-161: 25-28, 36 25. A two-column proof is just a different format of giving your statement and the reason why  (theorem, postulate, definition, or property)  it’s true (I know “statement” by “theorem, postulate, definition, or property“) a. What statement … Continue reading

## 9/9/13- “Since…then…” Statements and Proofs

Warm-up: Fill in the blank with always, sometimes, or never. 1) Vertical angles are ______ congruent. 2) Congruent angles are _______ right angles. 3) Complementary angles are ______ congruent. 4) Adjacent angles in a transversal are _______ supplementary. 5) Linear … Continue reading

## HW#6

HW#6 p. 149: 18-25 Recall: A transversal is a line that cuts across two other lines.  (think transcontinental- across continents) Remember terms that go together.  Transversals have two sides, and a pair of angles can either be on the same side … Continue reading

## Proving Properties of Angle Pairs

This gallery contains 4 photos.

There is a lot of prior information that goes into understanding proofs! Let’s start with some real life examples, with the idea of conditions. What are the conditions under which you would mow the lawn? Ex: “I would mow the lawn … Continue reading