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Mathematics 9 Online
jaxdds:

The radius, r, of a circle is one-half of the length of its diameter, d. r= r= d + r = d 2 r = d r = d

snowflake0531:

So, diameter is 2 times the length of radius

jaxdds:

yeah i know that

snowflake0531:

So, out of r=d +r=d 2r=d which one is it

snowflake0531:

You already know, 2 times r is d so which one

jaxdds:

it 2r=d

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