Geometry Applets: Angles, Triangles, Similarity, Proportionality, and Special Segments in Circles.

APPLETS FOR ANGLE RELATIONSHIPS

Angle Classification

Complementary Angles

Supplementary Angles

Vertical Angles

Parallel Lines Cut by a Transversal

APPLETS FOR TRIANGLES

Angle Sum

Exterior Angle Sum

Special Lines and Segments in Triangles

Circumcenter, Circumcircle, and Circumradius

Incenter, Inradius, and Incircle

Pythagorean Theorem

Converse of Pythagoream Theorem

Corresponding Parts of Congruent Triangles are Congruent: CPCTC

Side-Side-Side: SSS

Angle-Angle-Side: AAS

Angle-Side-Angle: ASA

Side-Angle-Side: SAS

AAS ASA SAS SSS

APPLETS

QUADRILATERALS: SEGMENTS AND ANGLES

Parallelogram

Square

Rectangle

Rhombus

Trapezoid (Isosceles)

APPLETS

FOR PROPORTIONALITY AND SIMILARITY

Parallel Lines as Transversals Form Proportional Segments

Basic Proportionlality Theorem

Triangle MidPoint Theorem

Similarity In Triangles: Enlargement, Reduction by a Scaled Factor

Similarity in Right Triangle version A

Trigonometry Right Triangle

Law of Sines: Ambiguous Case

Alternate Solution Law of Sines Ambiguous Case

APPLETS FOR CIRCLES

Central Angle vs Inscribed Angle

Inscribed Angles to the Same Arc

Chord Perpendicular to a Diameter

Intersecting Chords in Circle

Intersecting Secants Outside Circle: Segments

Intersecting Tangents Outside Circle: Segments

Intersecting Secant and Tangent Outside Circle: Segments

Intersecting Secants Outside Circle: Angle

Intersecting Tangents Outside Circle: Angle

Intersecting Secant and Tangent Outside Circle: Angle

APPLETS POLYGONS

Area Regular Hexagon

Area Regular Octagon

Area Regular Pentagon

Interior Angle Sum Convex Polygons: Proof

Compare and Contrast Exterior and Interior Angle Sum Different Polygons

Compare and Contrast Exterior and Interior Angle Sum Same Regular and Irregular Polygon

APPLETS SURFACE AREA AND VOLUME

Surface Area and Volume Cylinder

Surface Area and Volume Cone

Surface Area and Volume Prism

Surface Area and Volume Pyramid

Compare and Contrast Volume: Pyramid vs Prism

Compare and Contrast Volume: Cylinder vs Cone

Interactive Geometric Applets