Anonymous
Anonymous asked in Science & MathematicsMathematics · 4 weeks ago

7th grade math help?

Question is:

A larger circle has a circumference of one-third of that. Find the radius of the smaller circle.

Update:

^ THATS WRONG THIS IS THE QUESTION:: 

A larger circle has a circumference of 30(3.14). A smaller circle has a circumference of one-third of that. Find the radius of the smaller circle. 

3 Answers

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  • 4 weeks ago

    circumference of smaller circle

    c = (1/3) * 30(3.14)

    c = 10(3.14)

    -----------------

    c = 2(3.14)r

    2(3.14)r = 10(3.14)

    Divide both sides by 3.14

    2r = 10

    Divide both sides by 2

    r = 5 <––––––

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  • Anonymous
    4 weeks ago

    This question makes no sense, how are we meant to find a radius without any given measurement on the larger circle. 

    • Angelica4 weeks agoReport

      i updated the question
      sorry pls look

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  • 4 weeks ago

    I think you're missing info.  Like what's the radius of the larger.

    If the larger's circumference is 3x the circumference of the smaller, then the radius would also be 3x the size (or the radius of the smaller is 1/3 that of the larger).

    EDIT:  What I said above is still true.  Use that information and you can solve the problem.

    • Angelica4 weeks agoReport

      i updated the question pls look

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