estimate the radius of a circle with circumference of 272.2 inches use 3.14 for pi round to the nearest tenth.
A. 43.3
B.136.1
C.86.7
D.5887.2
21 answers
Well if it's circumference is 272.2, the radius would be 136.1, would it not? 272.2 / 2 gives that answer.
Ah wait, lemme redo this. I got circumference mixed up with diameter.
i think your right
No no, I know it's wrong now. I'm solving it right now
How is it A? Wouldn't it be C? Circumference is pi x diameter.
u got the answer????
272.2 / 3.14 = 86.7 inches, right?
no circumference=3.14(diameter)
Oh, that may've given me the diameter. I think Edward is right; my mistake!
you need to use the equation C=2(pi)r to solve the question. C=272.2, pi=3.14, r then equals 272.2/3.14/2=43.34, So A is the correct answer.
anyone able to solve my problem
it`s 86. somthing
Yes, Larry, 86.7 is a close estimate to 90.
ok thanks
THE ANSWER IS A BC YOU ARE LOOKING FOR THE RADIUS WHICH IS HALF OF A CIRCLE THE DIAMETER IS C NOT THE RADIUS WHICH YOU ARE LOOKING FOR
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1 answer