Geo Ch 3 Practice Test

Front

What is the central angle of a regular pentagon?

Back

72°.

Front

How many axes of symmetry does a regular pentagon have?

Back

Five axes of symmetry.

Front

What is the rotational symmetry of a regular pentagon?

Back

A regular pentagon maps onto itself after rotations of 72°, 144°, 216°, and 288°.

Front

What is the transformation that moves a shape 4 units to the right?

Back

Translation 4 units right.

Front

What is the transformation that moves a shape 2 units up and 4 units right?

Back

Translation 4 units right and 2 units up.

Front

What type of symmetry does a shape have if it can be reflected across a line?

Back

Line symmetry.

Front

What type of symmetry does a shape have if it can be rotated and still look the same?

Back

Rotational symmetry.

Front

How do you translate triangle A'B'C' to triangle ABC if the translation is (x+2, y-9)?

Back

Move each point of triangle A'B'C' 2 units to the right and 9 units down.

Front

What is the result of a 90° clockwise rotation about the origin?

Back

The coordinates (x, y) become (y, -x).

Front

What is the difference between reflection and rotation in transformations?

Back

Reflection flips a shape over a line, while rotation turns a shape around a point.