cooperjavin5 cooperjavin5

14-03-2016
Mathematics

Answered

What is the exact circumference of a circle with a radius of 15 cm?

Verified Answer :

tesomas tesomas

14-03-2016

The Answer is 94.2 the equation is C=23.14r

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apologiabiology apologiabiology

14-03-2016

since pi is irrational and it is used in the formula, we cannot give an exact answer except in terms of pi (we can give an aproxamation using 3.14 =aprox pi, but it is not exact)

ok
circumfernce=2pir
r=15
circumference=2pi15
circumference=30pi

exact=30pi cm
if you want to aprox pi=3.14 then
aprox circumfernce=94.2 cm

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