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Classic Surf Lifesaver Optimisation question
Author:
joelsperanza
GeoGebra
New Resources
Parallel or Not? (V2)
Teorema Japonês para quadriláteros inscritos em uma circunferência
Bottema's Theorem
Stairs (Optical Illusion)
Slope of a Straight Line: Run and Rise
Discover Resources
An Inscribed Triangle
Projections (p.92)
Discovery, Remediation, and Differentiation with GeoGebra
Straight Line v15
[洋蔥] 勾股定理的面积法-下(0313):给高求面积
Discover Topics
Fractal Geometry
Mathematics
LCM and GCD
Differential Equation
Orthocenter