Внешний диаметр полого шара равен 16 см. Толщина стенок 2 см Найти
2 answers:
Answer:
Внешний радиус
Тогда внутренний радиус
Объем материала равен разности объемов внешнего и внутреннего шаров, то есть
Answer:
1239.25 cm³
Step-by-step explanation:
Outer diameter 16 cm
⇒ R= 8 cm
Inner radius
⇒ r= R- 2= 6 cm
The volume of the wall of 2 cm thickness:
⇒ 4/3πR³- 4/3πr³= 4/3*3.14*(8³-6³)= 1239.25 cm³
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