hanuman_2000 Posted January 31, 2005 Share Posted January 31, 2005 Hallo Teachers! How many line symmetry in the figure: X thanks. Link to comment Share on other sites More sharing options...
Deified Posted January 31, 2005 Share Posted January 31, 2005 Are the "b's" supposed to be there? And what exactly is line symmetry? Lines that are at opposing angles and are equidistant from the edge of the figure? Or have I totally missed the mark? Link to comment Share on other sites More sharing options...
jordan Posted January 31, 2005 Share Posted January 31, 2005 No, it's just "How many lines of symmetry are in this figure?:" X I believe it's four: One that's verticle, one that's horizontal, and two that follow down the middle of each of the lines. Those would be the lines where each side is a mirror image of the other. Link to comment Share on other sites More sharing options...
hanuman_2000 Posted January 31, 2005 Author Share Posted January 31, 2005 TEACHERS! Could you please explain it to me for a Square and a rectangle. Thanks. Link to comment Share on other sites More sharing options...
Mart Posted January 31, 2005 Share Posted January 31, 2005 TEACHERS! Could you please explain it to me for a Square and a rectangle. Thanks. Get a square sheet of paper and a pencil. Fold the paper from corner to corner. Draw a line down the fold. When you fold the paper along the line the two sides of paper fit on each other exactly. They are triangles. The line you have drawn is called a line of symmetry. Fold the paper from the other two corners. Draw a line down the fold. The line you have drawn is called a line of symmetry because . . . Get another square sheet of paper. Fold down the middle of the paper. Draw a line down the fold. The line you have drawn is called a line of symmetry because . . . What shapes are on both sides of the line? Fold down the middle of the paper (the way you didn't fold before). Draw a line down the fold. Count the lines you've drawn. That's how many lines of symmetry a square has. Now try it with a rectangular sheet of paper Link to comment Share on other sites More sharing options...
hanuman_2000 Posted February 1, 2005 Author Share Posted February 1, 2005 Hello Teachers! Mr. Mart, your explanation helps me lot.What a fantastic way of explaing the things. I tried it for a rectangular shape of paper and found that there are two lines of symmetry. Am I right? Thanks. Link to comment Share on other sites More sharing options...
Dave Posted February 1, 2005 Share Posted February 1, 2005 Yes, that's right. Just for the record, we're not teachers. I'm a second year undergraduate, and I don't think anyone else here is either Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now