Triangle area proofs | Perimeter, area, and volume | Geometry

Area of triangles and quadrilaterals

Types of quadrilateral

Geometry Theorem 1 (Parallelogram)

Geometry Theorem 2 (Parallelogram)

Geometry Theorem 3 (Parallelogram)

Constructions

Constructing Triangles

Constructing a Parallelogram

Circles: radius, diameter, circumference and Pi | Geometry

Area of a circle

https://www.youtube.com/watch?v=1m9p9iubMLU

Geometry Theorem 4 (CIrcle)

Geometry Theorem 5 (Circle)

Geometry Theorem 6 (Circle)

Geometry Theorem 7 (Circle)

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