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Alenkinab [10]
3 years ago
7

Help me please I don't get it​

Mathematics
1 answer:
gavmur [86]3 years ago
3 0

9514 1404 393

Answer:

  C = 56.52 in

  A = 256.34 in²

Step-by-step explanation:

The figure is trying to show you that d=18 in, so r=9 in. The formulas for C and A are given, so you only need to put the numbers in the formula and do the arithmetic. Apparently, you're supposed to use 3.14 for π.

  C = πd = (3.14)(18 in) = 56.52 in

  A = πr² = (3.14)(9 in)² = (3.14)(81) in² = 254.34 in²

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Answer:

see below

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3 years ago
Read 2 more answers
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