MOST POPULAR VIDEOS

• Complementary, Supplementary & Vertical Angles - Geometry

  How do you talk about pairs of angles? The three most common terms are vertical, complementary and supplementary angles. In this video we cover all three types and give several examples.

  Uploaded Aug 29, 2017
• Construct a Congruent Line Segment
  Uploaded Aug 14, 2017
• Construct Incenter

  In this video we construct an incenter

  Uploaded Aug 22, 2017
• Constructing a 30°- 60°- 90° triangle

  Step 1. With compass on P, set it to any convenient widt
  2. Draw an arc on one side of the line, crossing PQ at S
  3. Move to S and draw an arc across the first arc, creating point T
  4. Move to T and make an arc across the previous one, creating R
  5. Draw a line PR from P through R and beyond
  6. With compass on Q, set it to any convenient width.
  7. Draw an arc on the same side of PQ as R, crossing PQ at A
  8. Move the compass to A and draw an arc across the first one at B
  9. Draw a line from Q, through B to cross PR at C
  Done. The triangle PQC has angles of 30, 60 and 90 degrees.

  Uploaded Sep 21, 2017
• Constructing a Circumcenter

  This video demonstrates how to construct the circumcenter in a large acute triangle.

  Uploaded Aug 22, 2017
• Constructing a perpendicular bisector using a compass and straightedge | Geometry | Khan Academy

  Practice this lesson yourself on KhanAcademy.org right now:
  https://www.khanacademy.org/math/geom...
  
  Watch the next lesson: https://www.khanacademy.org/math/geom...
  
  Missed the previous lesson?
  https://www.khanacademy.org/math/geom...

  Uploaded Aug 21, 2017
• Constructing an equilateral triangle using a compass and ruler
  Uploaded Aug 14, 2017
• Constructing Dilations
  Uploaded Nov 02, 2017
• Constructing the Center of Rotation

  Construct the center of rotation using only a compass and straightedge, given a pre-image and image.

  Uploaded Sep 21, 2017
• Constructing the Line of Reflection

  Construct the line of reflection using a compass and straight edge, given a pre-image and image.
  
  Pre-Requisite:
  
  Perpendicular Bisector (http://youtu.be/HRS_1QmMvgs)

  Uploaded Sep 22, 2017