Hallo Teachers!

 

 

 

How many line symmetry in the figure: X

 

thanks.

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?

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.

TEACHERS!

 

Could you please explain it to me for a Square and a rectangle.

 

Thanks.

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

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.

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