Question

HELP ME PLEASE.

Answer 1

Elsie is making a quilt using quilt blocks like the one in the diagram.

Answer 2

a. How many lines of symmetry are there?

b. Does the quilt square have rotational symmetry? If so, what is the angle of rotation?

Answer 3

is it 8 or 4 lines of symmetry?

Answer 4

10

Answer 5

I think there are four lines of symmetry (y=0, y=x, x=0, y =-x) through the center. Only rotations of 90 degrees or multiples there off will be equivalent.

Answer 6

I'm not sure how you define line of symmetry. If it reflection through the line that gives the same shape in the same position its 4, if its a reflection through one of the outer lines of the square, then the shape will look the same but be in a new position. So we need to see the exact definition. Normally when dealing a function and we talk about lines of symmetry we are talking about the first kind.

Answer 7

http://www.mathsisfun.com/definitions/line-symmetry.html