Maybe I don't understand. But if tou take a 12x12 square and divide it in a 9x12 rectangle and three 3x4 small rectangles, then the square is divided into 4 similar rectangles. Generally, if L is the square side and x,y are the small rectangles width and height, then y=L/3 and x=L/4

C is 2 units below the centre of the semicircle whilst the radius of the semicircle is less than 2 units. The semicircle does not touch the base of the square and C is a point on the base.

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Maybe I don't understand. But if tou take a 12x12 square and divide it in a 9x12 rectangle and three 3x4 small rectangles, then the square is divided into 4 similar rectangles.

ReplyDeleteGenerally, if L is the square side and x,y are the small rectangles width and height, then y=L/3 and x=L/4

you are right Cesar. what a shame! what was I thinking? let's correct this one way or another.

ReplyDelete-8foxes

additional information (a<b) is added. Is this enough to make the claim hold?

ReplyDeleteSorry for the earlier error.

These are what make us human, right? Come on we are no machines, but flesh and blood.

You mean:

ReplyDeleteif L is the square side then:

a=L/3

if rectangles must be similars:

a/b=(L-b)/L.

These leads to:

3*b²-3*L*b+L^2=0

whose discriminant is:

9*L²-12*L^2=-3*L²<0

http://imageshack.us/photo/my-images/834/fox338.png/

ReplyDeletejyu

correction: ACB, not ACD

ReplyDeletejyu

Hello Yu,

ReplyDeleteHow can you say that "C is on the outside of the semicircle"? I just couldn't see that.

Thanks.

C is 2 units below the centre of the semicircle whilst the radius of the semicircle is less than 2 units. The semicircle does not touch the base of the square and C is a point on the base.

ReplyDeleteDo not use all of these Private Money Lender here.They are located in Nigeria, Ghana Turkey, France and Israel.My name is Mrs.Ramirez Cecilia, I am from Philippines. Have you been looking for a loan?Do you need an urgent personal or business loan?contact Fast Legitimate Loan Approval he help me with a loan of $78.000 some days ago after been scammed of $19,000 from a woman claiming to be a loan lender from Nigeria but i thank God today that i got my loan worth $78.000.Feel free to contact the company for a genuine financial call/whats-App Contact Number +918929509036 Email:(fastloanoffer34@gmail.com)

ReplyDelete