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Author:
Michael Borcherds
,
GeoGebra Materials Team
,
Mathguru
Heron's formula states that the area of a triangle with sides a, b, c is given by
where
Cyclic Quadrilateral
GeoGebra
Proof of Heron's Formula
New Resources
Poorly Drawn Parallelograms 2
Exploring the Derivative of a Quadratic Function
Poorly Drawn Parallelograms
Sphere on a Grid
Blancmange curve (fractal)
Discover Resources
Quadratic Function Slider
Perpendicular to a line from an external point
Stárnutí normálního oka. Presbyopie.
ICE P. 52 5
graph transformations
Discover Topics
Arithmetic
Fractal Geometry
Piecewise Functions
Vectors
Geometric Distribution