7-6: TEKS Practice

  • 1. In the diagram, m || n and s || t. Find m∠3.

    Intersecting parallel lines.

  • 2. In the figure, m∠1 = (3x + 12)°, m∠2 = (3x + 18)°, and m∠3 = (7x + 10)°. What is m∠3?

    A triangle with exterior angle 3 and remote interior angles 1 and 2.

  • 3. Are the two triangles similar?

    Two triangles.

    • A. Yes, because the triangles look the same.

    • B. Yes, because the angles in one triangle are congruent to the angles in the other triangle.

    • C. No, because the angles in one triangle are not congruent to the angles in the other triangle.

    • D. You cannot determine if two triangles are similar without knowing their side lengths.

  • 4. In the figure, m || n and p || q.

    Intersecting parallel lines.

    • a. Describe a method you can use to find m∠2.

    • b. Find m∠2.

    • c. Is there another method you can use to find m∠2? Explain.

  • 5. In the figure, m∠1 = (8x + 7)°, m∠2 = (4x + 14)°, and m∠4 = (13x + 12)°. Your friend incorrectly says that m∠4 = 51°.

    A triangle with interior angles 1, 2, and 3. Angle 4 is exterior to angle 3.

    • a. What is m∠4?

    • b. What mistake might your friend have made?

      • A. Your friend found m∠3, not m∠4.

      • B. Your friend found m∠2, not m∠4.

      • C. Your friend found m∠1, not m∠4.

  • 6. In the figure, m∠1 = (4x + 7)°, m∠2 = (2x + 9)°, and m∠4 = (7x − 4)°. What is m∠4? m∠3?

    A triangle with interior angles 1, 2, and 3. Angle 4 is exterior to angle 3.


End ofPage 261

Table of Contents

Digits, Grade 8, Volume 1, Homework Helper Unit A: Number and Operations Unit B: Proportionality Unit C: Expressions, Equations, and Relationships English/Spanish Glossary Formulas Math Symbols Formulas Measures Properties