anonymous
  • anonymous
a larger cone with a slant of 42 yards. and a smaller cone with a slant of 30 yards and radius of 9 yards. What is the approximate surface area of the larger cone? Answer 978.5 square yards 1,103.1 square yards 1544.4 square yards 2,162.3 square yards
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
?
Callisto
  • Callisto
slant of larger cone radius of larger cone ----------------- = ------------------ slant of smaller cone radius of smaller cone 42 radius of larger cone --- = ------------------ 30 9 radius of larger cone = 42/30 x 9 = 12.6 surface area = πrl + πr^2 = π (12.6)(42) + π(12.6)^2 Can you do calculation ? Do you understand the workings?
anonymous
  • anonymous
would it be 2,162.3 ?

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Callisto
  • Callisto
I got 2161.3 :S
anonymous
  • anonymous
close enough lol thanks
Callisto
  • Callisto
You're welcome, I'm confused with my answer :(

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