3-3: TEKS Practice

  • 1. Which figure shows an adjacent complement for the given angle?

    An angle measuring 40°.

    • A.

      Answer choices for adjacent complement.

    • B.

      Answer choices for adjacent complement.

    • C.

      Answer choices for adjacent complement.

  • 2. Think About the Process

    • a. How do you decide if the angles shown are complementary?

      Two adjacent angles: angle 1 measuring 31° and angle 2 measuring 60°.

      • A. If the sum of the angles is greater than 180°, the angles are complementary.

      • B. If the sum of the angles is 180°, the angles are complementary.

      • C. If the sum of the angles is 90°, the angles are complementary.

      • D. If the sum of the angles is greater than 90°, the angles are complementary.

    • b. Are the angles shown complementary angles? If not, what should the measure of ∠ 1 be so that the angles are complementary?

      • A. Yes, the angles are complementary.

      • B. No, the angles are not complementary. The measure of ∠ 1 should be °.

  • 3. Find the measure of the complement of an 18° angle.

  • 4. Estimation ∠ 1 and ∠ 2 are complementary angles. The measure of ∠ 1 is 58°. The measure of ∠ 2 is 10x°. Estimate the value of x by rounding the measure of ∠ 1 to the nearest ten degrees. The figure is not drawn to scale.

  • 5. Think About the Process ∠ 1 and ∠ 2 are complementary angles. The measure of ∠ 1 is 58°. The measure of ∠ 2 is (2x + 16)°. The figure is not drawn to scale.

    • a. What should you do first to find the value of x?

      • A. Write an equation where the difference of the measures of ∠ 1 and ∠ 2 is equal to 90°.

      • B. Write an equation where the sum of the measures of ∠ 1 and ∠ 2 is equal to 180°.

      • C. Write an equation where the difference of the measures of ∠ 1 and ∠ 2 is equal to 180°.

      • D. Write an equation where the sum of the measures of ∠ 1 and ∠ 2 is equal to 90°.

    • b. The value of x is .


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Table of Contents

Digits, Grade 7, Volume 1, Homework Helper Unit A: Number and Operations Unit B: Expressions, Equations, and Relationships Unit C: Measurement and Geometry Unit D: Proportionality English/Spanish Glossary Formulas Math Symbols Formulas Measures Properties