It is 9 because 11 minus 2 is equal to 9.
Answer:
i dont know honestly
Step-by-step explanation:
<h2><u><em>
Answer: 1017.8760</em></u></h2><h2><u><em>
Step-by-step explanation:</em></u></h2><h2><u><em>
area A=πr2
</em></u></h2><h2><u><em>
A=π×182
</em></u></h2><h2><u><em>
A=324π
</em></u></h2><h2><u><em>
A=1017.87602
</em></u></h2><h2><u><em>
</em></u></h2><h2><u><em>
also, circumferenceC=2πr</em></u></h2><h2><u><em>
and, diameterd=2r</em></u></h2>
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Answer: 63
Step-by-step explanation: 21+21+21
