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LenKa [72]
3 years ago
14

How much more area does a large pizza with a 12 in. diameter have than a small pizza with an 8 in. diameter? Round your answer t

o the nearest square inch
38 in2

63 in2

87 in2

13 in2
Mathematics
2 answers:
uranmaximum [27]3 years ago
8 0
I'm pretty sure its 87 in2 but don't trust me! lol
Harlamova29_29 [7]3 years ago
8 0
A = pi × r^2 = pi × (d/2)^2
So A(large) - A(small) =
\pi {(12 \div 2)}^{2} - \pi {(8 \div 2)}^{2}   \\ = \pi {(6)}^{2} - \pi {(4)}^{2}  = 36\pi - 16\pi \\  = 20\pi \:  {in}^{2}  = 20 \times 3.1415 \:  {in}^{2}   \\  = 62.8 \:  {in}^{2}  = 63 \:  {in}^{2}
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