Results 1 to 3 of 3
Like Tree2Thanks
  • 1 Post By TKHunny
  • 1 Post By Dumplum

Thread: How many of X are need to cover a space of X metres squared?

  1. #1
    Newbie
    Joined
    Feb 2019
    From
    Ireland
    Posts
    2
    Thanks
    1

    How many of X are need to cover a space of X metres squared?

    Hi, I've started what I think is geometry... ^^' and I'm stumbling at this first practical question. Any help is really appreciated!

    A panel of glass is 180cm2, 80cm2 of bue glass and 80cm2 of clear glass.
    How many panels are needed if the blue glass used covers an area of 4.48m2?

    I thought convert cm to metres so 80/100 = 0.8m2 and then 4.48m2/0.8m2 = 5.6panels, but the books answer is 560 panels are needed. What do I not understand?
    Thank you
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Joined
    Aug 2007
    From
    USA
    Posts
    3,145
    Thanks
    34

    Re: How many of X are need to cover a space of X metres squared?

    Quote Originally Posted by Dumplum View Post
    Hi, I've started what I think is geometry... ^^' and I'm stumbling at this first practical question. Any help is really appreciated!

    A panel of glass is 180cm2, 80cm2 of bue glass and 80cm2 of clear glass.
    How many panels are needed if the blue glass used covers an area of 4.48m2?

    I thought convert cm to metres so 80/100 = 0.8m2 and then 4.48m2/0.8m2 = 5.6panels, but the books answer is 560 panels are needed. What do I not understand?
    Thank you
    It's really kind of bad form to post in multiple locations simultaneously. In any case, converting SQUARE CM to SQUARE M requires a SQUARED conversion.

    80 cm^2 * (1/100)^2 m^2

    See where that leads you.
    Thanks from Dumplum
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Feb 2019
    From
    Ireland
    Posts
    2
    Thanks
    1

    Re: How many of X are need to cover a space of X metres squared?

    Sorry about my lack of forum etiquette. I see that 80(1/100)^2 converts it properly. Thanks I'll mull that over now and hope it sinks in ^^'
    Thanks from TKHunny
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 4
    Last Post: Nov 15th 2011, 04:20 AM
  2. chi squared/pearson squared problem
    Posted in the Advanced Statistics Forum
    Replies: 0
    Last Post: Apr 12th 2010, 05:09 PM
  3. Question on square metres?
    Posted in the Algebra Forum
    Replies: 1
    Last Post: Jul 14th 2009, 09:44 PM
  4. feet to metres
    Posted in the Algebra Forum
    Replies: 6
    Last Post: Apr 21st 2009, 08:06 AM

/mathhelpforum @mathhelpforum