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Mathematics 20 Online
OpenStudy (anonymous):

Math Help

OpenStudy (anonymous):

OpenStudy (anonymous):

151 for the first,

jhonyy9 (jhonyy9):

you need to know the formula for circumference of a circle

jhonyy9 (jhonyy9):

@Kithnos not directly answers please ,just the way how the asker can getting the right answer

jhonyy9 (jhonyy9):

@rainbowswirl do you know formula for circumference ?

OpenStudy (anonymous):

No @jhonyy9

OpenStudy (anonymous):

What about the other one? @Kithnos

jhonyy9 (jhonyy9):

why ? you need learn it bc without this formula you not can solving same exercices

jhonyy9 (jhonyy9):

for the second one you need using this formula too

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