Rotations — Unit test

Question 1

Square PQRS is transformed as shown on the graph.

Revolt · Accepted Answer

R0, 90°

Question 2

Triangle QRS is transformed as shown on the graph.

Revolt · Accepted Answer

R0, 270°

Question 3

A regular decagon has 10 sides.

Revolt · Accepted Answer

10

Question 4

Which diagram has all the correct lines of reflectional symmetry for the rectangle?

Revolt · Accepted Answer

A rectangle is folded by a vertical and horizontal line going through its center.

Question 5

Question 5

Revolt · Accepted Answer

360°

Question 6

On a coordinate plane, a triangle has points R (negative 3, 4), T (negative 1, negative 4), and S (negative 4, negative 2).

Revolt · Accepted Answer

(3, 4)

Question 7

Which statements are true about trapezoid ABCD and its translated image, A'B'C'D'? Select two options.

Revolt · Accepted Answer

The rule for the translation can be written as T–3, 1(x, y).

Question 8

Which statement describes the order of rotational symmetry for an isosceles triangle?

Revolt · Accepted Answer

An isosceles triangle has an order 1 rotational symmetry because it does not have all congruent angles.

Question 9

A point has the coordinates (m, 0) and m ≠ 0.Which reflection of the point will produce an image located at (0, –m)?

Revolt · Accepted Answer

a reflection of the point across the line y = –x

Question 10

On a coordinate plane, 2 triangles are shown. The first triangle has points F (3, 2), H (4, 5), G (1, 2). The second triangle has points F prime (negative 2, 3), H prime (negative 5, 4), G prime (negative 2, 1).

Revolt · Accepted Answer

Correct. He transformed the triangle according to the rule (x, y) → (–y, x).

Rotations — Unit test Answers

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