Symmetry — Unit test

Question 1

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

Revolt · Accepted Answer

72°

Question 2

Which triangle has 0 reflectional symmetries?

Revolt · Accepted Answer

A triangle has all different side lengths and angle measures.

Question 3

A rhombus has 4 equal sides.

Revolt · Accepted Answer

2

Question 4

Which figure has an order 3 rotational symmetry?

Revolt · Accepted Answer

equilateral triangle

Question 5

An equilateral triangle with all equal side lengths and angle measures.

Revolt · Accepted Answer

3

Question 6

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

Revolt · Accepted Answer

20

Question 7

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

Revolt · Accepted Answer

isosceles triangle

Question 8

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

Revolt · Accepted Answer

The figure could be a rhombus because the 2 lines of symmetry bisect the angles.

Question 9

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

Revolt · Accepted Answer

rhombus

Question 10

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

Revolt · Accepted Answer

360°

Symmetry — Unit test Answers