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3241004551 [841]
4 years ago
9

SOS!!!...need help ASAP :(...

Mathematics
1 answer:
Rom4ik [11]4 years ago
5 0
3a
C = 2πr = 2π(7) = 14<span>π or 14 x 3.14 = 43.96 ft

3b
</span>A = πr^2 = 49π or 49 x 3.14 = 153.86 ft^2
<span>
3c
3.5 x 78.5 = $538.51
cost = $</span>538.51<span>

</span>
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