Directions: Read carefully each item and write the letter of the correct answer on the answer sheel, 1. Which of the following is not an undefined term? B. line A. angle C. plane D. point 2. Which of the following Is assumed to be true without proof? B. lemma A. corollary C. postulate D. theorem 3. The illustration below is an example of what mathematical system? Ray is a part of a line having only one endpoint. CD (read "ray CD") The endpoint is always the first letter. A. defined terms B. postulate C. theorem D. undefined terms 4. Which of the following refers to a statement accepted after it is proved deductively? A. defined terms B. postulate C. theorem D. undefined terms 5. The illustration below refers to what mathematical system? mLA + mzF = 36° + 144° LA and mzF are supplementary angles. A. defined terms B. postulate C. theorem undefined terms Assessment 2. Directions: Refer to the figure, determine the different points, lines, planes. Write the answer on the answer sheet. 1. Name ail the points 2. Name the 3 lines in the figure. 3. Name the plane given.

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Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.