4. Find the number of coins of 1.5 cm diameter and 0.2 cm thickness to be melted to form a
right circular cylinder of height 10 cm and diameter 4.5 cm.
Share
4. Find the number of coins of 1.5 cm diameter and 0.2 cm thickness to be melted to form a
right circular cylinder of height 10 cm and diameter 4.5 cm.
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
450
Step-by-step explanation:
Let nnv the number of 1.5 CM diameter coin required to form a cylinder circular cylinder of height 10 cm and diameter 4.5 CM .
volume aap right circular cylinder =n× volume of 1.55 CM diameter coins .
therefore
n =
[tex]n = \pi(4.5 \div 2) {}^{2} \times 10 \\ \div \\ \pi(1.5 \div 2) {}^{2} \times 2 \div 10 \\ \\ \\ 45 \times 45 \div 20 \times 20 \times 10 \times 20 \times 20 \times 10 \div 15 \times 15 \times 2 \\ \\ \\ \\ \\ \\ \\ 9 \times 10 \times 5 \\ \\ \\ 450[/tex]