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Mathematics, 27.01.2020 07:31 npaslayoy1bzj

Diagonaal vanuit het aangrijpingspunt p van f, en
f2 (afb. 9-1c).
als de hoek tussen f, en f, willekeurig is, zullen we
de resultante voorlopig alleen grafisch bepalen.
is de ingesloten hoek echter 30° - 45° -60° - 90° -
120°-135° - 150° dan bepalen we de resultante met
behulp van de in de wiskunde geleerde verhoudingen
of met de stelling van pythagoras.
de volgende verhoudingen hebben we geleerd:
a. de rechthoekige driehoek met de hoeken van 30°,
60° en 90° (afb. 9-2a).
de verhouding van de zijden is 1: 3: 2.
b. de rechthoekige driehoek met de hoeken van 45°,
90° en 45° (afb. 9-2b).
de verhouding van de zijden is 1: 1: 2.
c. de rechthoekige driehoek met de verhouding van
de zijden van 3: 4: 5 (afb. 9-3).

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Diagonaal vanuit het aangrijpingspunt p van f, en
f2 (afb. 9-1c).
als de hoek tussen f, en...
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