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Circle Investigation
Math 7: Circle vocabulary from Investigation 2
| Question | Answer |
|---|---|
| The distance around a circle. | circumference |
| The distance across a circle through its center. | diameter |
| The distance from the center of circle to any point on the circle. | radius |
| Part of the circumference of a circle. | arc |
| A region bounded by an arc of a circle and two radii. | sector |
| Two or more circles with the same center. | concentric circles |
| A segment that passes through the interior of a circle and has both endpoints on the circle. | chord |
| A polygon whose vertices are on a circle and whose other points are inside the circle. | inscribed polygon |
| A half circle | semicircle |
| An angle whose vertex is the center of a circle. | central angle |
| The distance from the pivot point and the marking point of a compass when drawing a circle. | radius |
| The point that is the same distance from any point on a circle. | center |
| An angle that opens to the interior of the circle from a vertex on the circle. | inscribed angle |
| What professions might require the use of compasses, circles and arcs? | architecture, engineering or any profession that involves navigation with maps |
Created by:
opfer
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