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Maths · Grade 4 · Set B
Fold it and match it
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B
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Goal: 15 min
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Remember: A fold line makes two halves that match exactly. A shape that has a fold line has a line of symmetry. A shape with equal sides and equal corners has as many lines as sides.

Do the halves match?

1
Do the two halves match when you fold this circle on the dashed line?
YesNo
2
Do the two halves match when you fold on the dashed line?
YesNo
3
When you fold this oval on the dashed line, do the halves match?
YesNo
4
Which picture shows a dashed line that makes matching halves?
A
B
C
5
How many lines of symmetry does this rhombus have? It is not a square.
6
This pentagon has 5 equal sides. How many lines of symmetry does it have?

Lines of symmetry

7
This star has a line of symmetry.
TrueFalse
8
This octagon has 8 equal sides. How many lines of symmetry does it have?
9
Which shape has exactly 1 line of symmetry?
A
B
C
10
Join each shape to its lines of symmetry.
  1. 1heart
  2. 2rhombus (not a square)
  3. 3square
  4. 4pentagon with equal sides
  • A4 lines
  • B5 lines
  • C2 lines
  • D1 line
11
Put the shapes in order from the fewest lines of symmetry to the most.
  • slanted parallelogram
  • rectangle (not a square)
  • hexagon with equal sides
  • half circle
12
Draw a shape that has exactly 2 lines of symmetry. Draw both fold lines with dashed lines.
13
A circle has more lines of symmetry than any other shape. Write why.
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Answer key · Set B
Fold it and match it
1Yes A circle folds onto itself along any line through its middle, so the halves match.
2No A quarter circle folds into matching halves only along its slanted middle. Down the middle the halves do not match.
3Yes The top half and the bottom half are the same shape and size, so they match.
4C Only the rhombus's halves match. Folding the trapezoid across its middle or the rectangle on a slant makes halves that do not line up.
52 It folds from top to bottom and from side to side. Those 2 folds match.
65 Fold from each corner to the middle of the side across from it. There are 5 folds that match.
7True Fold from any point down through the middle. The two halves match.
88 A shape with equal sides and equal corners has as many lines of symmetry as it has sides. 8 sides, 8 lines.
9B A half circle folds only down its middle. The rhombus and the rectangle each have 2.
101-D, 2-C, 3-A, 4-B
111, 3, 4, 2 A slanted parallelogram has 0, a half circle has 1, a rectangle has 2 and a hexagon with equal sides has 6.
13Your own words: a grown-up reads it.
Mark each answer, count the right ones and write the score on the sheet.