Consecutive interior angles practice quiz Grade 7 geometry

📚 Topic Summary

When a line (called a transversal) intersects two other lines, it creates several angles. Consecutive interior angles are pairs of angles that lie on the same side of the transversal and are inside the two lines. If the two lines are parallel, consecutive interior angles are supplementary, meaning they add up to 180 degrees. This worksheet will help you practice identifying and working with these angles.

🧠 Part A: Vocabulary

Match the term with its correct definition:

1. Term: Transversal
2. Term: Interior Angles
3. Term: Consecutive Interior Angles
4. Term: Supplementary Angles
5. Term: Parallel Lines

1. Definition: Angles formed inside two lines when intersected by a transversal.
2. Definition: Two lines that never intersect.
3. Definition: A line that intersects two or more other lines.
4. Definition: Pairs of interior angles on the same side of the transversal.
5. Definition: Two angles whose measures add up to $180^{\circ}$.

✍️ Part B: Fill in the Blanks

Consecutive interior angles are on the _____ side of the transversal and _____ the two lines. If the two lines cut by a transversal are parallel, then consecutive interior angles are _____, meaning they add up to _____ degrees.

📐 Part C: Critical Thinking

Imagine you're designing a bridge. How could understanding consecutive interior angles help you ensure the bridge's supports are parallel and stable?