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Geometry

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Lines and Line Segments

Lessons

Introduction Page Preview Mid-Point Formula Distance Formula Perpendicular Bisectors

Angles

Lessons

Complementary Angles Supplementary Angles Adjacent Angles Vertical Angles Angle Bisectors

Parallel and Perpendicular Lines

Lessons

Transversals Of Parallel Lines Equations of Parallel and Perpendicular Lines

Triangles

Lessons

Interior Angles of Triangles Exterior Angles of Triangles Triangle Inequality Theorem

Quadrilaterals

Lessons

Properties of parallelograms

Three-dimensional Figures

Lessons

Nets of 3D Shapes Cross Sections

Congruence

Lessons

Congruence Proofs with Congruent Triangles

Transformations

Lessons

Transformations Translations Reflections Rotations Dilations

Symmetry

Lessons

Symmetry

Similarity

Lessons

Similarity Similar triangles Proofs with Similar Triangles

Right Triangles and Trigonometry

Lessons

The Pythagorean Theorem The Converse of the Pythagorean Theorem Trigonometric Ratios Solving Right Triangles

Area

Lessons

Area of Triangles Area of Parallelograms Area of Rhombuses Area of Trapezoids

Surface Area and Volume

Lessons

Surface Area Formula Volume Formulas Volume of Prisms Volume of Cylinders Volume of Pyramids Volume of Cones Volume of Spheres

Circles

Lessons

Parts of a Circle Area of Circles Circumference of circles Arc Length Radians Area of Sectors Tangent to a circle Inscribed Angles Inscribed Circles Circumscribed Circles

Circles and Parabolas in the Coordinate Plane

Lessons

Equations of Circles Parabolas

Probability

Lessons

Probability Compound Probability Conditional Probability

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