question

If the smallest angle of rotation for a regular polygon is 18Â°, how many sides does polygon have?

answer

c. 20

question

Which set of side lengths represents a triangle with 3 lines of reflectional symmetry?

answer

c. 5, 5, 5

question

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

answer

c. Figure C

question

What is the order of rotational symmetry for a rhombus?

answer

b. 2

question

A regular polygon has 15 sides. Which is a possible angle of rotational symmetry for the figure?

answer

c. 72Â°

question

How many lines of reflectional symmetry does an equilateral triangle have?

answer

3

question

Which triangle has 0 reflectional symmetries?

answer

a. triangle 1

question

Which letter in the word HAPPY has an order 2 rotational symmetry?

answer

a. H

question

Which statements are true about the lines of symmetry of a regular pentagon? Check all that apply.

answer

Every line bisects a vertex angle.
Every line bisects a side.
Every line is perpendicular to a side.

question

Which figure has an order 3 rotational symmetry?

answer

b. equilateral triangle

question

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

answer

90Â°

question

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

answer

c. Fold the hexagon along a line that bisects two vertex angles.

question

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

answer

c. The figure must be a rhombus because it has exactly 2 pairs of congruent angles.

question

Which figure has the same order of rotational symmetry as a rectangle?

answer

d. rhombus

question

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

answer

d. isosceles triangle

question

Which angle of rotation is an angle of rotational symmetry for all figures?

answer

d. 360Â°