[url=https://www.geogebra.org/m/nzhtt8qc]https://www.geogebra.org/m/nzhtt8qc[/url]

[list][*][url=https://en.wikipedia.org/wiki/Pendulum_(mechanics)]https://en.wikipedia.org/wiki/Pendulum_(mechanics)[/url][/*][*][url=https://suppes-corpus.stanford.edu/sites/g/files/sbiybj7316/f/approximations_for_the_period_of_the_simple_pendulum_based_on_the_arithmetic-geometric_mean_431.pdf]"Approximations for the period of the simple pendulum based on the arithmetic-geometric mean"[/url][/*][*][url=https://en.wikipedia.org/wiki/Arithmetic%E2%80%93geometric_mean]https://en.wikipedia.org/wiki/Arithmetic%E2%80%93geometric_mean[/url][br][/*][/list]