A cylindrical candle has a volume of approximately 400cm^3 and is 8 cm tall. What is the radius of the candle?
2 answers:
Answer:
<h2><u>Solution</u><u> </u><u>:</u><u>-</u></h2>
We know that
V = πr²h
400 = 22/7 × r² × 8
400 × 7 = 22 × 7r²
2800 = 154r²
2800/154 = r²
18 ≈ r²
4.2 = r
Answer: r = 4.2
Step-by-step explanation: hope this helps
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12 + 12 + 18 + 18 = 60
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