Digits, Grade 7, Volume 1, Homework Helper

3-2: TEKS Practice

  • 1. Select each angle that is adjacent to ∠ w.

    Two lines intersect forming four angles, labeled clockwise w, x, y, z.

    • A.z

    • B.y

    • C.x

  • 2. Which of these is a pair of adjacent angles?

    4 rays with the same endpoint, O. Clockwise in order the rays are OK, OL, OM, and ON.

    • A.KOL and ∠ MON

    • B.KOM and ∠ LON

    • C.LOM and ∠ LON

    • D.KOL and ∠ LOM

  • 3. Given the measure of two of the angles, find the measure of ∠ SAP. Simplify your answer.

    Adjacent angles SAP and PAX.

  • 4. The measure of ∠ POR is 107 , and 7 twelfths , degrees . What is the value of x?

    Two adjacent angles: POQ measuring x° and QOR measuring 65 1/3°.

  • 5. Think About the Process

    • a. What equation should you use to find the value of x in this figure?

      Two adjacent angles. Angle KLM measures 85° and angle MLN measures x°. Angles KLM and MLN together form angle KLN which measures 138°.

      • A. x − 85 = 138

      • B. 85 − x = 138

      • C. 85 + x = 138

      • D. 138 + x = 85

    • b. The value of x is .

  • 6. Think About the Process The measure of ∠ PQS is 142°.

    • a. What equation should you use to find the value of x?

      Two adjacent angles: Angle PQR measures (4x)° and angle RQS measures 38°. Angles PQR and RQS together form angle PQS.

      • A. 142 + 38 = 4x

      • B. 4x − 38 = 142

      • C. 4x + 142 = 38

      • D. 4x + 38 = 142

    • b. What is the value of x?

    7.

    • a. Reasoning Find the value of x in the figure.

      Two adjacent angles: angle KLM measures x° and angle MLN measures 84°. Angles KLM and MLN together form angle KLN which measures 120°.

    • b. Explain how you know your answer is reasonable.


End ofPage 99

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