Geometry: Shapes and Formulas

The following videos will describe the common geometrical shapes and the formulas to calculate their area and perimeter. The videos also include the use of the Pythagorean Theorem and Heron's formula.

Part 1 contains:

Perimeter and area of triangles, rectangles, and trapezoids.

Part 2 contains:

Area of triangles inclusing Heron's Formula. Pythagorean Theorem. Area and circumference of circle.

Part 3 contains:

A lesson on the basic formulas of geometry, including area and perimeter of rectangles, squares, circles and triangles.

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