Results 1 to 2 of 2

Math Help - Is this right?

  1. #1
    Newbie
    Joined
    Jun 2006
    Posts
    11

    Is this right?

    what is the radius of a circle whose area is 616 square meters?
    is the answer 308? am I right?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Grand Panjandrum
    Joined
    Nov 2005
    From
    someplace
    Posts
    14,972
    Thanks
    4
    Quote Originally Posted by Aarxn
    what is the radius of a circle whose area is 616 square meters?
    is the answer 308? am I right?
    The area of a circle of radius r is \pi r^2 in this
    case we have:

    <br />
616=\pi r^2 \ \ \mbox{m^2}<br />
,

    so:

    <br />
r=\sqrt{616/\pi}\approx 14.00 \ \mbox{m}<br />

    RonL
    Follow Math Help Forum on Facebook and Google+


/mathhelpforum @mathhelpforum