Anonymous
Anonymous asked in Science & MathematicsMathematics · 2 months 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.

Relevance
• 2 months 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 <––––––

• Anonymous
2 months ago

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

• Angelica2 months agoReport

i updated the question
sorry pls look

• 2 months 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.

• Angelica2 months agoReport

i updated the question pls look