Geometry Semester 1 Review

Front

What is the definition of dilation in geometry?

Back

Dilation is a transformation that alters the size of a figure but not its shape, using a scale factor.

Front

What does the term 'scale factor' mean?

Back

The scale factor is a number that scales, or multiplies, the dimensions of a figure during a dilation.

Front

If a point (x, y) is dilated by a scale factor of k, what is the new point?

Back

The new point is (kx, ky).

Front

What is the SSS postulate in triangle congruence?

Back

The SSS (Side-Side-Side) postulate states that if three sides of one triangle are equal to three sides of another triangle, the triangles are congruent.

Front

What is the SAS postulate in triangle congruence?

Back

The SAS (Side-Angle-Side) postulate states that if two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle, the triangles are congruent.

Front

What is the ASA postulate in triangle congruence?

Back

The ASA (Angle-Side-Angle) postulate states that if two angles and the included side of one triangle are equal to two angles and the included side of another triangle, the triangles are congruent.

Front

How do you calculate the scale factor between two similar figures?

Back

The scale factor is calculated by dividing the length of a side of the scaled figure by the length of the corresponding side of the original figure.

Front

What is the measure of an angle that is complementary to a 45-degree angle?

Back

The measure of the complementary angle is 45 degrees.

Front

What does it mean to bisect an angle?

Back

To bisect an angle means to divide it into two equal angles.

Front

What is the definition of congruent figures?

Back

Congruent figures are figures that have the same shape and size.