math

what is the rule for using diameter to find circumference?

If the diameter is 2* the length of the radius then d/2 then C=2pie+r.
CATCH YOU ON THE FLIP SIDE

  1. 👍 0
  2. 👎 0
  3. 👁 118
asked by sal

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    Students in Mr. Tandoc's shop class made a circular railroad crossing sign for a school play. The diameter of the sign was about 4 feet. How does the diameter compare to the circumference of the sign? A. The diameter is about 1/3

    asked by Jerald on January 28, 2013
  2. Math

    Students in Mr.Tandoc's shop class made a circular railroad crossing sign for a school play. The diameter of the sign was about 4 feet. How does the diameter compare to the circumference of the sign? A.The diameter is about 1/3 of

    asked by Jerald on January 26, 2013
  3. math

    how do you find the diameter of a circle if you don't have the radius? the circumference is 628 cm. Divide the circumference by pi, which is 3.14 (approximately). That will give you the diameter. Circumference = pi * D

    asked by prince on February 15, 2007
  4. math

    Okay. So i'm doing this project for my geometry class about different sports, soccer, baseball, basketball, bowling, golf, volleyball and pool. I have to find the surface area, volume, diameter, circumference, and radius of each

    asked by Emily on May 23, 2007
  5. college algebra

    The diameter of the Earth is approximately 7,920 miles. Given that the circumference of a circle is pi times its diameter, which statement best describes the length of a trip from Washington to Masdagascar that is approximately

    asked by Anonymous on August 29, 2006
  6. Math--need help fast

    If the radius of a circle is x/6, what's the diameter and circumference? Diameter = 2*r Circumference = 2*pi*r ...or... Circumference = pi*d Note: I'm using * to mean multiply. Can you now determine what you need to know with this

    asked by Emily on March 7, 2007
  7. Math

    The circumference of a circle varies directly from its diameter. If the circumference of the circle having a diameter of 7cm is 7 cm, what is the circumferences of the circle whose diameter is 10cm? 18cm? 20cm? a. Write a

    asked by Jennylyn on September 19, 2015
  8. math

    The circumference of a circle varies directly from its diameter. If the circumference of the circle having a diameter of 7cm is 7 cm, what is the circumferences of the circle whose diameter is 10cm? 18cm? 20cm? a. Write a

    asked by =) on August 21, 2014
  9. Math

    Thank you Ms. Sue. Sorry I didn't tell you we're just learning that pi=3 for now. It made everything complicated for you to check if my answers were correct. :P But what is this formula usually used for?Diameter=Circumference/π?

    asked by Jerald on March 6, 2013
  10. 5th grade math

    The diameter of a penny is 3/4 in. How many pennies are needed to form a row 12in. long? Also to find the circumference of a circle do you use the radius or diameter x 3.14?

    asked by jill on December 7, 2010

More Similar Questions