9.1 - 9.3 Circle Vocabulary

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Across
  1. 2. the side of a triangle that is across the right angle
  2. 3. a straight line from the center of the circle to the outer edge
  3. 4. this polygon has opposite angles that are supplementary when it is inside a circle
  4. 8. a straight line passing through the center of a circle from side to side
  5. 10. the point in the middle of the circle
  6. 11. a straight line segment whose endpoints both lie of the edge of a circle
  7. 12. A closed curved line that is the same distance from the center all the way around and whose total measure is 360 degrees around
Down
  1. 1. an angle within a circle whose legs are radii and its measure is the same as its arc
  2. 5. half of a circle, formed by cutting a whole circle along the diameter line and whose measure is equal to 180 degrees
  3. 6. An angle within a circle whose legs are chords
  4. 7. a theorem that states that if a triangle is a right triangle, then a squared plus b squared is equal to c squared
  5. 9. a continous portion of a circle that consists of two endpoints on the edge of the circle and whose measure is twice the size of the inscribed angle between those two endpoints