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ezeriva1 ezeriva1
  • 05-07-2016
  • Mathematics
Answered

Please, can you give me help with the answer #1- #2 and #3. Thanks

Please, can you give me help with the answer 1- 2 and 3. Thanks class=

Verified Answer :

amy16084
amy16084 amy16084
  • 05-07-2016

the formula for circumference is 2\(\pi\)r and are is \(\pi\)r² 
#1 c=20×pi×2=40pi
a=20²×pi=400pi

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