What tools did the Greeks not use in geometric constructions?Check all that apply.A.CompassB.EraserC.ProtractorD.Straightedge

Answering the Question

The ancient Greeks had specific tools for geometric constructions, primarily focusing on those that allowed for exact measurements and constructions of geometric figures. When analyzing the options provided:

1. Compass - Used for drawing arcs and circles. The Greeks employed this tool.
2. Eraser - Not a classical tool used by the Greeks. They typically used a stylus on wax tablets, which could be smoothed over, but this would not be considered an eraser in the modern sense.
3. Protractor - The Greeks did not use protractors as we know them today. Their constructions relied on the methods of symmetry and angles, but not with tools for measuring angles exactly.
4. Straightedge - A fundamental tool used by the Greeks for creating straight lines and segments.

Summary of Findings

Based on this analysis, the Greeks did not use the following tools in geometric constructions: Eraser and Protractor.

Final Answer

The tools that the Greeks did not use in geometric constructions are B. Eraser and C. Protractor.