Quadrilaterals

This chapter includes an extension of the angle sum property of triangles to the angle sum property of quadrilaterals. Midpoint Theorem is one of the most important topics.

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Created by School Prep . Last updated Fri, 26-Mar-2021 English
Curriculum for this course
17 Lessons 01:20:07 Hours
Quadrilaterals
7 Lessons
  • Intro to quadrilateral 00:04:04
  • Quadrilateral properties 00:08:59
  • Quadrilateral types 00:10:19
  • Quiz 1 00:00:00
  • Kites as a geometric shape 00:13:37
  • Proof: Opposite sides of a parallelogram 00:02:25
  • Quiz 2 00:00:00
  • Sum of interior angles of a polygon 00:04:36
  • Proof: Opposite sides and angles of a parallelogram 00:08:30
  • Proof: Diagonals of a parallelogram 00:09:12
  • Quiz 3 00:00:00
  • Proof: Rhombus diagonals are perpendicular bisectors 00:06:17
  • Whether a special quadrilateral can exist 00:05:08
  • Rhombus diagonals 00:07:00
  • Quiz 4 00:00:00
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