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For a picture of a rectangle with the lines of symmetry drawn, see the Related Link below. The image is toward the bottom of the page.
A regular octagon has 8 lines of symmetry. See the Related Link below that includes a diagram of an octagon with the lines of symmetry drawn. A non-symmetrical octagon may have between 0-4 lines of symmetry.
Unless the rectangle is a square, it only has two lines of symmetry. Please refer to the Related Link below to see diagrams of both rectangles and squares with lines of symmetry drawn. The images are near the bottom of the page.
symmetryis about copying one objectsomewhereelse. a mirror just allows you to see what you have to draw inadvanceand you cant see afterwords yoursymmetricalshape is like your mirror image
The Pentagon has 5 lines of symmetry quite simply, actually. See, say you made one line straight through the pentagon at every vertex, right? Well, once you do that, you have 3 lines of symmetry in total, right? Now, say you make another 2 lines of symmetry, this time right through the center of each side. In total, this would make 5.
See image in related link.
Line or reflective symmetry is really a special case of rotational symmetry but from a different viewpoint. In line symmetry imagine a line going north to south on the page. If you rotate an image out of the page around that line through 180 degrees you get a reflection. For rotational symmetry imagine that same line being perpendicular to the page so that you see it as a dot. The image is then rotated around that dot.
The square has four lines of symmetry. The rectangle has only two, as it can be folded in half horizontally or vertically: students should be encouraged to try to fold the rectangle in half diagonally to see why this does not work.
An isosceles triangle has one line of symmetry
The capital letter L has zero. It's not symmetrical no matter how you slice it. The lowercase letter l has two, one horizontal and one vertical.
It means literally if you reflected the object through the centre of the image, at a specific angle, in a mirror you would get the same image on the mirror with that on the other side. So or example the letter A has one line of reflectional symmetry because if you put a mirror vertically along it, you would see the same image on the mirror as the side that you weren't looking at.
Yes it does right down the middle. If you want to see if this is correct get a mirror and put it right down the triangle and watch and learn!