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Need help solve this.-example-1
User Michael Sepcot
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2 Answers

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Answer is C.
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User Mralexlau
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6 votes

Answer:

C

Explanation:

The smaller cone and larger cone are similar with

ratio of heights = 63 : 189 = 1 : 3

diameter of smaller cone is 24, hence radius is 12

radius of larger cone = 3 × 12 = 36

circumference (C) is calculated as

C = 2πr ← r is the radius

C = 2π × 36 = 72π ≈ 226 mm → C

User Mweerden
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