The circumference of a circle is 25.12. What is the radius?

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Answer 1 · 2017-04-04T17:21:51

#r=3.998# to the nearest 3 decimal places

#2pir=25.12#

#:.r=25.12/(2pi)#

#:.r=25.12/(2 xx 3.141592654)#

#:.r=25.12/6.283185307#

#:.r=3.998# to the nearest 3 decimal places

check:

#2 xx pi xx 3.998=25.12017486#

#3.998# to the nearest 3 decimal places