GeoGebra
Create Class
GeoGebra
Lines and Angles
Lines and Angles
Author:
Duane Habecker
Topic:
Angles
,
Straight Lines
A series of applets about lines and angles for 10 to 12 year old students.
Basic Geometric Objects and definitions
Types of angles
Animated acute angles
Animated view of right angles.
Animated view of obtuse angles.
Animated view of straight angles.
Animated view of reflex angles.
Protractor Practice (Not Random)
Protractor Practice (Random)
Sum of angles in polygons
Angles in a 5-pointed star
Sum of interior angles in a triangle
Sum of the angles in a triangle
Missing angle in a triangle
Definition of complementary angles
Missing complementary angle
Supplementary angles
Missing supplementary angle
Vertical angles
Triangle on a line with missing angles
Angles on a line
Broken Protractor
Related Topics
Congruence
Conic Sections
Constructions
Coordinates
Fractal Geometry
Discover Resources
Always a parallelogram
basketball
spiral
Build Your Own Right Triangular Prism (V2)!
Demo: using Sort(list of points)
Discover Topics
Centroid or Barycenter
Pythagoras or Pythagorean Theorem
General Quadrilateral
Trapezium
Standard Deviation
