МАКС КОЛВО БАЛЛОВ РЕШИТЕ ЗАДАЧУ ПО ГЕОМЕТРИИ. Created by nelidkinvs. geometriya-ru

МАКС КОЛВО БАЛЛОВ РЕШИТЕ ЗАДАЧУ ПО ГЕОМЕТРИИ...

October 2021 2 6 Report

МАКС КОЛВО БАЛЛОВ РЕШИТЕ ЗАДАЧУ ПО ГЕОМЕТРИИ

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$1)\; \; S(sektora)=\frac{\pi R^2}{360^\circ }\cdot n^\circ=\frac{\pi \cdot 3^2}{360^\circ }\cdot 30^\circ = \frac{3\pi }{4}\approx 2,355\\\\2)\; \; S(\Delta EOF)=\frac{1}{2}\cdot R^2\cdot sin30^\circ =\frac{1}{2}\cdot 9\cdot \frac{1}{2}=\frac{9}{4}=2,25\\\\3)\; \; S(segmenta)=S(sektora)-S(\Delta EOF)=\frac{3\pi }{4}-\frac{9}{4}=\frac{3\cdot (\pi -3)}{4}\approx 0,105$

1 votes Thanks 0

aydo72

Sсектора= Пи×3²÷360×30=3Пи/4

S eof=2,25

S сегмента=3Пи/4-2,25~0.105

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