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Outline
Lines and Angles
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
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
Next
Basic Geometric Objects and definitions
New Resources
alg2_05_05_04_applet_exp_fxn_flvs
Dissections by Guillermo Bautista
Poorly Drawn Parallelograms 2
Parallelograms: Quick Investigation
Tutorial: Create lists of numbers and objects
Discover Resources
Elefteriou-GeoGebra Project
Εγγεγραμμένο Τετράπλευρο 2
Parallel and Perpendicular Investigation
QUADRILATERO GENERATO DA SOVRAPPOSIZIONE SEMIRETTE
Finding Unknown Complementary Angles
Discover Topics
Division
Parametric Curves
Correlation
Set Theory
Median Value