Digits, Grade 8, Volume 1, Homework Helper

### 7-1: TEKS Practice

• 1. Which of the following is a pair of corresponding angles? • A. ∠5 and ∠6

• B. ∠6 and ∠7

• C. ∠6 and ∠8

• D. ∠1 and ∠4

• 2. Find the measure of ∠u given that p vertical line vertical line q . • 3. Streets A and B run parallel to each other. The measure of ∠8 is 23°. The measure of ∠6 is 157°. Find the measure of ∠2. • 4. Find mv given that p vertical line vertical line q , mu = 75.8°, and mw = 104.2°. • 5.

• a. Writing Find the alternate interior angles in the figure shown, given that m vertical line vertical line n . Which are the alternate interior angles? List all that apply. • b. Describe a situation where you would use a transversal to cut a pair of parallel lines.

• 6. Error Analysis On a recent math test a teacher asked for the measure of ∠w. In the figure, p vertical line vertical line q . Jacob incorrectly said that the measure was 101°. • a. Find the measure of ∠w.

• b. Which error might Jacob have made?

• 7. Rainbows When sunlight enters a drop of rain, different colors of light leave the drop at different angles, making a rainbow. In the figure shown, lines m and n represent the sun's rays. Assume that lines m and n are parallel and you are standing at point A. • a. For violet light at point B, m∠2 = 27° and m∠3 = 153°. What is m∠1?

• b. Justify how you can determine m∠1.

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