Asked by Anonymous
If a circle's circumference is 15 inches, what is its radius?
Answers
Answered by
Ms. Sue
C = pi * d
15 = 3.14 * d
15/3.14 = d
4.77707 = d
4.77707 / 2 = r
2.388535 = r
15 = 3.14 * d
15/3.14 = d
4.77707 = d
4.77707 / 2 = r
2.388535 = r
Answered by
Anonymous
I still don't understand this.
Answered by
Anonymous
Can you explain the steps in solving this formula?
Answered by
Ms. Sue
Please copy and paste the line you don't understand.
Answered by
Anonymous
C = pi * d
15 = 3.14 * d
15/3.14 = d
4.77707 = d
4.77707 / 2 = r
I apologize, but I do not understand any of them.
15 = 3.14 * d
15/3.14 = d
4.77707 = d
4.77707 / 2 = r
I apologize, but I do not understand any of them.
Answered by
Ms. Sue
Circumference = pi * diameter
Then I substituted real numbers for the letters.
Then I substituted real numbers for the letters.
Answered by
Anonymous
How did you know which numbers to use?
Answered by
Ms. Sue
Please memorize pi = 3.154
Your problem stated that the circumference is 15.
Your problem stated that the circumference is 15.
Answered by
heylor
thats wrong. pi equals to 3.14 not 3.154 and im in 7th grade and i know this hahah
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