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  1. Circumference and Area of Circles - Socratic

    Given a circle with a diameter of 6, what is the circumference? How do you find the circumference of a circle with a diameter of 7.5 in? What is the circumference of a circle with a radius of 34 …

  2. Question #8f1bf - Socratic

    See below The formula for circumference of a circle = 2pir Whre r= radius of the circle Therefore, the explanation would be to find the length of the diameter and multiply by pi or, Multiply twice …

  3. Question #6547a - Socratic

    Let the radius of the inscribed (smaller circle) be #r# so it's circumference: #C_S = 2pi r# This means the square has a length of #2r# The radius of the circumscribed circle (larger circle) is …

  4. A triangle has corners at (9 ,7 ), (2 ,5 ), and (5 ,4 ). What is the ...

    color(blue)("Area"=(6625pi)/338" units"^2 In order to find the area of the circumscribed circle, we need to find the radius of this circle. It can be shown that: r=(abc)/(4("area of" Delta ABC)) …

  5. Thanos has his spaceship in a circular orbit around the ... - Socratic

    The spaceship will travel "38090 km" in "5 hours". We first need to determine the circumference of the circular orbit. The sum of the radius of the earth and the distance above the earth is the …

  6. Mrs. Green has a circular flower garden. The radius is 7 ... - Socratic

    I tried this: You know that the circumference (length) is given as: C=2pir so you only need to use your radius r=7"ft" in it. [pi=3.14]

  7. So, if the circumference is 22 pi, the radius is 11 pi? Help?

    The circumference is S=2pi*R hence for S=22*pi the radius is R=11

  8. One circle radius is 3; another circle radius is 9. What is ... - Socratic

    66 2/3 % We let the radius of the smaller circle be x and the radius of the larger circle be x + 6. The circumference of a circle is given by C = 2pir. The circumference of the smaller circle is …

  9. Question #726e8 - Socratic

    Any circle with a given radius #R# (=half the diameter #D#) will have a circumference of #P=2piR = piD# and a surface area of #A=piR^2=1/4piD^2#

  10. Identify Critical Points Questions and Videos - Socratic

    How do you find the radius and center of a circle with the equation # ( x - 1) ^2 + (y - 3) ^2 =16#? How do you find the radius and center of a circle with the equation …