math

posted by .

What is the circumference and the area of a circle with a radius of 9.3mm.

  • math -

    I don't remember the equations exactly, but I know there are equations to find that. Just go an a search engine and type in "circumference equation" or "area equation" and you'll find it.

  • Read this first! I found the formula for circumference. -

    The circumference formula is:

    c = pi times diameter
    OR
    c = 2piradius

    Sorry, I don't know how to make a pi symbol on the keyboard. :)

    I couldn't find the area formula... but just place 9.3 in where I said radius.

    Hope I helped! :)

  • math -

    Thanks Willow

  • math -

    area of circle = pi r^2

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    the radius of a circle when the numeric values of the circumference and the area are equal Start with what you know. If you know the formula the area of a circle, and the formula for the circumference of a circle, then you can set …
  2. Circumference and Area of Circles

    can someone help me with these:Find the radius, diameter and circumference of a circle with an area of 64 cm2. Write your answers as decimals rounded to the nearest hundredth. Find the circumference and area of a circle that has a …
  3. Algebra

    The Circumference and area of a circle of radius r are givin by 2 [pie] r and [pie] r[2], respectively use 3.14 for the constant [pie] A. What is the circumference of a circle with a radius of 2 m?
  4. Computer Science (Basics)

    public class Circumference { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub ; final double PI = 3.14159; int radius = 10; double area = PI * radius *radius; double circum = 2 * PI * …
  5. math

    I'm asked to find the circumference of a circle to the nearest tenth and the area of the same circle to the nearest hundredth. The circle has a diameter of 30 and a radius of 15. I got a circumference of 94.2 and an area of 188.48cm2 …
  6. MATH HOMEWORK

    Find the circle circumference and circle area with a circles radius 10 inches I think the circles are is 314 but don't know the circumference.
  7. Math

    23.What is the approximate circumference of a circle with a radius of 6 centimeters?
  8. math

    The area of circle c is 81 pi . if the radius of the circle is doubled, what is the circumference of the new circle ?
  9. Geometry

    A circle with a radius of 1/2 ft is dilated by a scale factor of 8. Which statements about the new circle are true?
  10. Math

    Find the perimeter of a regular 360-sided polygon that is inscribed in a circle of radius 5 inches. If someone did not remember the formula for the circumference of a circle, how could that person use a calculator’s trigonometric …

More Similar Questions