Exercises: Constructing and Bisecting Line Segments and Angles

Use only a pair of compasses and a straight edge to construct — a protractor may only be used to check your work afterward.

Grade 7·15 problems·~24 min·Uganda NCDC Primary 7 Mathematics·lesson·construction-02

Work through problems with immediate feedback

Recall / Warm-Up

Review the difference between constructing and measuring before bisecting anything.

Asked to construct a $60\degree$ angle, which method actually counts as constructing?

Measuring $60\degree$ directly with a protractor and marking the ray

Drawing the angle by eye, then labeling it $60\degree$

Drawing arcs with a pair of compasses using the equilateral-arc method