Circle geometry

2,704 views

Published on

Published in: Education
0 Comments
2 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
2,704
On SlideShare
0
From Embeds
0
Number of Embeds
82
Actions
Shares
0
Downloads
0
Comments
0
Likes
2
Embeds 0
No embeds

No notes for slide

Circle geometry

  1. 1. Circle Geometry<br />By: Cameron Starcheski, Melanie Bender, and Sarah Somerville<br />
  2. 2. Terminology<br /><ul><li>A ‘chord’ divides a circle into two arcs</li></ul>Major (larger)<br />Minor (smaller)<br /><ul><li>If the word ‘arc’ appears by itself, it means the minor arc
  3. 3. An inscribed angle has its vertex on the circle and two chords from the arms
  4. 4. The word ‘subtended’ is used when a third chord completes the triangle
  5. 5. A ‘central angle’ has its vertex in the centre of the circle and its arms equal the radius</li></li></ul><li>Circle Theorem 1:<br />Perpendicular bisector of a chord passes through the center of the circle. <br />
  6. 6. Circle Theorem 2: <br />If two chords are congruent they are equidistant from the centre. <br />
  7. 7. Circle Theorem 3:<br />Measure of the central angle subtended by a chord is equal to twice the angle at the circumference. <br />
  8. 8. Circle Theorem 4: <br />Angle subtended by same arc are equal. <br />
  9. 9. Circle Theorem 5: <br />The angle subtended by a diameter is a right angle. <br />
  10. 10. Cyclic Quadrilateral:<br />Opposite angles in a cyclic quadrilateral add to 180 degrees<br />
  11. 11. Thanks for watching Kenton!!<br />

×