Symmetry — Quiz Answers

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Which figure shows a line of reflectional symmetry for the letter T?

A
Image with description A letter T is folded at the horizontal line.
B
Image with description A letter T is folded vertically through the middle.
C
Image with description A letter T is folded diagonally through its center.
D
Image with description A letter T is folded diagonally.
3

If a quadrilateral has exactly 2 lines of symmetry, and both are angle bisectors, then which statement would be true?

A
The figure must be an isosceles trapezoid because it has 2 congruent base angles.
B
The figure could be a rhombus because the 2 lines of symmetry bisect the angles.
C
The figure could be a square because the diagonals of a square bisect the right angles.
D
The figure must be a rectangle because all rectangles have exactly 2 lines of symmetry.
5

Which type of triangle will always have at least 1-fold reflectional symmetry?

A
acute triangle
B
right triangle
C
isosceles triangle
D
obtuse triangle
6

Which statements are true about the lines of symmetry of a regular pentagon? Choose three correct answers.

A
Every line is perpendicular to a side.
B
Every line bisects a vertex angle.
C
Every line connects the midpoints of 2 sides.
D
Every line bisects a side.
E
Every line connects two vertices.
7

What is the smallest angle of rotational symmetry for a square?

A
45 degrees
B
90 degrees
C
180 degrees
D
360 degrees
8

Which triangle has 0 reflectional symmetries?

A
Image with description A triangle has all equal side lengths and angle measures.
B
Image with description An isosceles right triangle with no labels.
C
Image with description A triangle with no labels, has all equal side lengths and angle measures.
D
Image with description A right triangle with no label, has different side lengths and angle measures.
9

Which figure has an order 3 rotational symmetry?

A
right trapezoid
B
equilateral triangle
C
regular hexagon
D
right triangle
10

How can a regular hexagon be folded to show that it has reflectional symmetry?

A
Fold the hexagon along a line connecting the two midpoints of adjacent sides.
B
Fold the hexagon along a line that creates a right angle at a vertex.
C
Fold the hexagon along a line that bisects two vertex angles.
D
Fold the hexagon along a line from a vertex to the midpoint of an opposite side.

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