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Compass Parts and Circle Construction

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About This Diagram

This interactive diagram introduces the parts of a compass and demonstrates how circles are constructed. Hover over compass parts to learn about each component.

Compass Parts

Part Function
Fixed Point Sharp point that stays at the center
Pencil Point Draws the circle arc
Compass Legs Two arms that spread apart
Adjustment Hinge Controls the radius distance

Key Concept

A compass draws perfect circles because every point on the circle is exactly the same distance (the radius) from the center point.

How to Use

  1. Hover over compass parts to see their names and descriptions
  2. Watch the animation showing how a circle is drawn
  3. Observe the colored radii demonstrating that all radii are equal

Learning Objectives

  • Identify the parts of a compass
  • Understand how circles are constructed
  • Recognize that all radii of a circle are equal

Bloom's Taxonomy Level

Remembering and Understanding - Identifying parts and understanding construction.

Iframe Embed Code

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        height="452px"
        width="100%"
        scrolling="no"></iframe>