Draw the lines of symmetry in a 3 cm square. How many lines of symmetry are there?
I can count four lines. Two diagonols, and two half lines.
To draw the lines of symmetry in a square, imagine folding the square along each of its sides so that both halves perfectly align. The lines where the square can be folded and its halves match are called lines of symmetry.
A square has 4 equal sides. To find the lines of symmetry, draw a straight line connecting the midpoints of opposite sides. You'll see that there are two lines of symmetry: one that runs horizontally through the middle of the square and one that runs vertically through the middle of the square.
In this case, since we are given a 3 cm square, you can draw a square with each side measuring 3 cm in length using a ruler. Then, find the midpoint of each side by measuring 1.5 cm from each end and making a mark. Connect the midpoints of opposite sides with straight lines to identify the lines of symmetry.
So, there are 2 lines of symmetry in a 3 cm square.