Sides and symmetry of 2-D shapes

Mathematics · Geometry · ages 6-7

Name ______________________ Date ____________

Count the sides of this shape. How many are there?
- 2
- 3
- 4
Which shape has a vertical mirror line?
- scalene triangle
- slanted parallelogram
- uneven kite
- square
How many sides does a rectangle have?
Answer: ______________
Count the sides of this shape. How many are there?
- 4
- 3
- 5
A square has 4 sides, a triangle has 3, so side counts tell them apart. Is that right?
Circle one: True False
Which has NO vertical line of symmetry?
- scalene triangle
- square
- circle
- regular hexagon
How many sides does a hexagon have?
Answer: ______________
Which shape has more sides, a pentagon or a square?
- Pentagon
- Square
- They have the same number
Mia says, 'This shape has 4 sides, so it must have a vertical line of symmetry.' Is Mia right?
- Yes, every 4-sided shape is symmetrical
- No, having 4 sides does not guarantee a vertical line of symmetry
- No, a shape needs 6 sides to be symmetrical
Folding a rectangle in half vertically matches both sides. Is that right?
Circle one: True False

Answer key

For grown-ups. Fold this page away before handing over the rest.

3 · A triangle has 3 sides: 1, 2, 3.
square · Folding a square down the middle matches.
4 · Two long and two short: 4.
4 · A square has 4 sides. Touch each edge once: 1, 2, 3, 4.
True · Right: different counts mean different shapes.
scalene triangle · All sides differ, so no fold matches.
6 · Hexa means six.
Pentagon · A pentagon has 5 sides and a square has 4 sides, so the pentagon has more.
No, having 4 sides does not guarantee a vertical line of symmetry · Some 4-sided shapes do not split into matching halves. You have to check for symmetry, not just count the sides.
True · Right: the halves mirror each other.