Geometric Constructions — Drawing with a Compass
by Anonymous · ⭐ 1 · 🍴 0
Draw precise shapes using only an unmarked ruler and compass. Construct perpendicular bisectors, angle bisectors, and triangles from just three side lengths—and discover why the radius must be greater than half the length.
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About this app
Geometric Constructions is an interactive middle-school geometry app for practicing compass-and-unmarked-straightedge constructions. Explore perpendicular bisectors, angle bisectors, and SSS triangle construction by advancing through visual steps and adjusting the compass opening, angle size, or side lengths. It also demonstrates why a compass radius must exceed half a segment and when side lengths cannot form a triangle.
Use cases
- Students learning classical geometric constructions
- Teachers demonstrating compass-and-straightedge procedures
- Learners investigating perpendicular and angle bisectors
- Practice with triangle inequality and SSS construction
Features
- Step-by-step perpendicular bisector construction
- Interactive angle bisector construction with adjustable angle size
- SSS triangle construction using adjustable side lengths
- Compass-opening control with a half-segment intersection check
- Mission activities with reset and next controls
- Visual compass circles, construction lines, and completion feedback