ezeriva1 ezeriva1

05-07-2016
Mathematics

contestada

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=

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amy16084 amy16084

05-07-2016

the formula for circumference is 2[tex] \pi [/tex]r and are is [tex] \pi [/tex]r²
#1 c=20×pi×2=40pi
a=20²×pi=400pi

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