[tex]volume \: ember = \frac{1}{3} \times volume \: drum \\ \\ \pi \times d \times d \times t = \frac{1}{3} \times \pi \times \frac{d}{2} \times \frac{d}{2} \times 90 \: c m\\ \\ t = \frac{30 \: cm}{4} = 7,5 \: cm \: (B)[/tex]
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
[tex]volume \: ember = \frac{1}{3} \times volume \: drum \\ \\ \pi \times d \times d \times t = \frac{1}{3} \times \pi \times \frac{d}{2} \times \frac{d}{2} \times 90 \: c m\\ \\ t = \frac{30 \: cm}{4} = 7,5 \: cm \: (B)[/tex]