Geometry: Unit 3 Review 24/25

Front

What is the degree of rotation for a clockwise rotation that transforms Triangle ABC to Triangle A'B'C'?

Back

90°

Front

What types of symmetry can a shape have?

Back

Point symmetry and line symmetry.

Front

Which capital letters have point symmetry but not line symmetry?

Back

N, S, Z.

Front

How do you determine the new coordinates of a point after translation?

Back

Add the translation values to the original coordinates.

Front

If point X is translated 3 units to the left and 9 units down from (1, 4), what are the new coordinates?

Back

(-2, -5).

Front

What happens to the coordinates of a point when it is reflected across the x-axis?

Back

The y-coordinate changes sign.

Front

What happens to the coordinates of a point when it is reflected across the y-axis?

Back

The x-coordinate changes sign.

Front

If a point (x, y) is reflected across both the x-axis and y-axis, what are the new coordinates?

Back

(-x, -y).

Front

What is the definition of point symmetry?

Back

A shape has point symmetry if it looks the same when rotated 180° around a point.

Front

What is the definition of line symmetry?

Back

A shape has line symmetry if it can be divided into two identical halves by a line.