Symmetry Answers
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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 must be a rectangle because all rectangles have exactly 2 lines of symmetry.C
The figure could be a rhombus because the 2 lines of symmetry bisect the angles.D
The figure could be a square because the diagonals of a square bisect the right angles.3
A rhombus has 4 equal sides.
A
1B
2C
3D
44
A regular polygon has 15 sides. Which is a possible angle of rotational symmetry for the figure?
A
12°B
45°C
72°D
90°5
Which statements are true about the lines of symmetry of a regular pentagon? Select three options.
A
Every line connects two vertices.B
Every line connects the midpoints of 2 sides.C
Every line bisects a vertex angle.D
Every line bisects a side.E
Every line is perpendicular to a side.
7
Which type of triangle will always have at least 1-fold reflectional symmetry?
A
right triangleB
obtuse triangleC
acute triangleD
isosceles triangle9
Which figure has the same order of rotational symmetry as a rectangle?
A
isosceles trapezoidB
regular octagonC
squareD
rhombus10
Which figure shows a line of reflectional symmetry for the letter T?
A
A letter T is folded at the horizontal line.
B
A letter T is folded diagonally.
C
A letter T is folded vertically through the middle.
D
A letter T is folded diagonally through its center.
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