Parallel Lines and Symmetry

How many lines of symmetry does this shape have?

• 1

• 2

• 3

• 4

How many lines of symmetry does the picture have? 

• 0 lines of symmetry

• 1 line of symmetry

• 2 lines of symmetry

• 3 lines of symmetry

What is the best term to describe this image?

• intersecting lines

• perpendicular lines

• parallel lines

• arrows

Mrs. Oblak is drawing figures with all of their lines of symmetry. He has drawn some of the figures incorrectly.

The lines of symmetry for ​ (a)   are incorrect because Mrs. Oblak draws ​ (b)   . Mrs. Oblak should ​ (c)   .

• Figure A

• too many

• too few

• Figure B

• Figure C

• Figure D

• erase diagnal lines

• add diagnal lines

• erase horizontal lines

• add horizontal lines

How many lines of symmetry does this triangle have?

• 1

• 2

• 3

• 4

How many lines of symmetry does this shape have?

• 0

• 1

• 2

• 4

How many lines of symmetry does this shape have?

• 0

• 1

• 2

• 4

Does the blue line appear to be a line of symmetry?

• yes

• no

Which figures appear to have 2 or more lines of symmetry?

• Figures K and L only

• Figures L and M only

• Figure K only

• Figure K, L and M

How many lines of symmetry does this square have?

• 1

• 2

• 3

• 4