ex49
v = π/3 x r² x h ⇒ h = 3v/πr² = 3 x 183/3.14 x 5² = 6.9 cm
ex50
v = π/3 x r² x h - π/3 x R² x h1
= (π/3) r²(h - h1) = 3.14/3 x 36 (h - h1) = 37.68(10 - 4) = 226.08 cm³
v = 226 cm³
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ex49
v = π/3 x r² x h ⇒ h = 3v/πr² = 3 x 183/3.14 x 5² = 6.9 cm
ex50
v = π/3 x r² x h - π/3 x R² x h1
= (π/3) r²(h - h1) = 3.14/3 x 36 (h - h1) = 37.68(10 - 4) = 226.08 cm³
v = 226 cm³