Hi Guest, Welcome to the quilting forums, register now —or—

Page 2 of 3 FirstFirst 123 LastLast
Results 11 to 20 of 28
Like Tree4Likes

Thread: Math quiz Linoleum block

  1. #11
    bubba's Avatar bubba is online now Senior Member
    Missouri Star

    Join Date
    Mar 2013
    Location
    Tacoma WA
    Posts
    8,936
    Post Thanks / Like

    Default Re: Math quiz Linoleum block

    That block is beautiful! And the fussy cutting in the first sample was remarkable!
    pat.

    No rain....no rainbows!



  2. #12
    Granny Judy's Avatar Granny Judy is offline Senior Member
    Missouri Star

    Join Date
    Apr 2011
    Location
    Along the Illinois river-Central Illinois
    Posts
    2,463
    Post Thanks / Like

    Default Re: Math quiz Linoleum block

    I'm a visual person.. so I played with the block by adding some lines..
    Math quiz Linoleum block-img_1548.jpg

    Using the 5 center.. you'll get a good size block. around 15 inches finished.
    snow ball the corners with 2 inch blocks.. and this becomes really easy to put together... using charm packs!!

    My Math isn't the best ,, so it maybe smaller. Where is Karen??
    Last edited by Granny Judy; August 22nd, 2013 at 02:30 AM. Reason: sizes are wrong

  3. #13
    Hulamoon's Avatar Hulamoon is online now Senior Member
    Missouri Star

    Join Date
    Jul 2012
    Location
    Kauai
    Posts
    13,676
    Post Thanks / Like

    Default Re: Math quiz Linoleum block

    Quote Originally Posted by Granny Judy View Post
    I'm a visual person.. so I played with the block by adding some lines..
    Click image for larger version. 

Name:	IMG_1548.JPG 
Views:	93 
Size:	91.1 KB 
ID:	54132

    Using the 5 center.. you'll get a good size block. around 12inches finished.
    snow ball the corners with 2 inch blocks.. and this becomes really easy to put together... using charm packs!!
    Thanks Judy! It was mentioned it was a nine patch. How many nine patches are there anyway? lol



    Lorie

  4. #14
    Sheena's Avatar Sheena is offline Senior Member
    The Guild President

    Join Date
    Oct 2012
    Location
    Weston Point, Runcorn, England
    Posts
    905
    Post Thanks / Like

    Default Re: Math quiz Linoleum block

    At first I thought you might be able to use a jelly roll too, but you can't unless you trim your charms.

    So lets say you're going to use the charms as they are.

    For the four side square you need four pieces of colour A (yellow) and four of colour B (orange) . Each piece must measure 2 3/4" x 5". Sew one A and one B together and sew the yellow side to the charm.

    You now need to know how wide to cut a strip of blue fabric.

    The blue diagonals on the corner are more tricky and you need Pythagoras's Theorum which is "The square on the hypotenuse is equal to the sum of the squares on the other two sides." This will let you know how wide a strip to cut.

    The hypotenuse is the side of a right angled triangle that is opposite the right angle.

    In the corner square, the blue fabric meets the yellow fabric where the yellow fabric goes horizontal and vertical. You know that where the blue meets the yellow this is 2 1/4" long.

    Back to Pythagorus - so the horizontal yellow piece is 2 1/4" when sewn to the blue and the charm,

    to find the square of a number you multiply it by itself so 2 1/4 x2 1/4 = 5.06 "

    The vertical yellow piece is also 2 1/4 " so it's square is also 5.06"

    The sum of 'the other two sides' is therefore 10.12"

    So the square of the hypotenuse is the square of 10.12" , which is 3.18"

    The blue strip needs to be 3.18" wide and seam allowance of 2 x 1/4" ie 1/2" or 0.5" , so that's 3.68". This is 3 7/10" to the nearest single decimal point.

    Problem: We don't work in 10th of an inch we work in 8th of an inch.
    Answer: 3 7/10" we can say is 3 6/8".

    You need to cut a blue strip 3 6/8" wide.

    CAN ANYONE CHECK THIS PLEASE.

  5. #15
    Sheena's Avatar Sheena is offline Senior Member
    The Guild President

    Join Date
    Oct 2012
    Location
    Weston Point, Runcorn, England
    Posts
    905
    Post Thanks / Like

    Default Re: Math quiz Linoleum block

    Why didn't I just sketch it out and measure it? Doh!

  6. #16
    Sheena's Avatar Sheena is offline Senior Member
    The Guild President

    Join Date
    Oct 2012
    Location
    Weston Point, Runcorn, England
    Posts
    905
    Post Thanks / Like

    Default Re: Math quiz Linoleum block

    So, I've just sketched it out. Much quicker, same result.

    To the top and bottom of the blue strip sew an orange strip of 2 1/2".

    Cut your corner patch diagonally.

    You'll have quite a bit of waste.

    Probably better snowballing it!

    I'm off for a G&T now and it's only 10.45 am.

  7. #17
    Hulamoon's Avatar Hulamoon is online now Senior Member
    Missouri Star

    Join Date
    Jul 2012
    Location
    Kauai
    Posts
    13,676
    Post Thanks / Like

    Default Re: Math quiz Linoleum block

    Sheena are you a math teacher, because you went way over my head. lol



    Lorie

  8. #18
    Lisapc's Avatar Lisapc is offline Senior Member
    Missouri Star

    Join Date
    Oct 2012
    Location
    Tyngsboro, MA
    Posts
    7,725
    Post Thanks / Like

    Default Re: Math quiz Linoleum block

    Quote Originally Posted by bkthomas View Post
    mesmerized Lisa.....sorry just couldn't help myself
    I knew that was spelled incorrectly but spell check kept arguing with me!!!!

    The block is still beautiful.
    bkthomas likes this.
    Lisa

    Please treat others as you would hope others would treat those you love.


    [/COLOR]

  9. #19
    nyscpa2be's Avatar nyscpa2be is offline Senior Member
    Missouri Star

    Join Date
    Apr 2013
    Location
    Saratoga, NY
    Posts
    1,287
    Post Thanks / Like

    Default Re: Math quiz Linoleum block

    Quote Originally Posted by Sheena View Post
    At first I thought you might be able to use a jelly roll too, but you can't unless you trim your charms.

    So lets say you're going to use the charms as they are.

    For the four side square you need four pieces of colour A (yellow) and four of colour B (orange) . Each piece must measure 2 3/4" x 5". Sew one A and one B together and sew the yellow side to the charm.

    You now need to know how wide to cut a strip of blue fabric.

    The blue diagonals on the corner are more tricky and you need Pythagoras's Theorum which is "The square on the hypotenuse is equal to the sum of the squares on the other two sides." This will let you know how wide a strip to cut.

    The hypotenuse is the side of a right angled triangle that is opposite the right angle.

    In the corner square, the blue fabric meets the yellow fabric where the yellow fabric goes horizontal and vertical. You know that where the blue meets the yellow this is 2 1/4" long.

    Back to Pythagorus - so the horizontal yellow piece is 2 1/4" when sewn to the blue and the charm,

    to find the square of a number you multiply it by itself so 2 1/4 x2 1/4 = 5.06 "

    The vertical yellow piece is also 2 1/4 " so it's square is also 5.06"

    The sum of 'the other two sides' is therefore 10.12"

    So the square of the hypotenuse is the square of 10.12" , which is 3.18"

    The blue strip needs to be 3.18" wide and seam allowance of 2 x 1/4" ie 1/2" or 0.5" , so that's 3.68". This is 3 7/10" to the nearest single decimal point.

    Problem: We don't work in 10th of an inch we work in 8th of an inch.
    Answer: 3 7/10" we can say is 3 6/8".

    You need to cut a blue strip 3 6/8" wide.

    CAN ANYONE CHECK THIS PLEASE.
    I think you might be a little off - I was taught Pythagoreum's theorum to be a^2 + b^2 = c^2. So if you're looking at the orange triangles on the corner blocks, it would be 2.5^2 + 2.5^2 = c^2 => 6.25+6.25=c^2 => 12.5=c^2 => 3.5355=c. My math is based on charm squares, not on 4" squares, but you will hopefully get the idea.

    BUT in terms of quilting, can't you just take a 2.5" square and snowball the edges to get the same effect? I don't think the diagonal in this case matters, since it is incorporated into a square.
    Amy

    Jeremiah 29:11

    http://pinterest.com/acct97531/quilts-to-make/

    Daughter of Tobeysmama

  10. #20
    Hulamoon's Avatar Hulamoon is online now Senior Member
    Missouri Star

    Join Date
    Jul 2012
    Location
    Kauai
    Posts
    13,676
    Post Thanks / Like

    Default Re: Math quiz Linoleum block

    I didn't mean a literal math quiz.lol



    Lorie

Page 2 of 3 FirstFirst 123 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •