Math Lessons
Geometry
Shapes, space, and the relationships between them. Geometry connects abstract math to the physical world , from architecture and engineering to art and navigation.
Beginner
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The Pythagorean Theorem
Why a² + b² = c² works, what it means geometrically, and how to use it beyond right triangles.
Beginner
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Area and Perimeter
Every formula for every shape , squares, rectangles, triangles, circles, and composite shapes.
Beginner
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Types of Angles and Triangles
Acute, obtuse, right, supplementary, complementary , and how triangle types relate to their angles.
Beginner
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Circle Formulas
Area, circumference, arc length, sector area , every circle formula explained with the intuition behind pi.
Beginner
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Volume Formulas
Volume for cubes, cylinders, cones, pyramids, and spheres , every 3D shape explained.
Beginner
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Coordinate Geometry
The Cartesian plane, distance formula, midpoint, and slope , where algebra meets geometry.