M2 Unit 6 Vocabulary

Front

What is a center of dilation?

Back

A center of dilation is the fixed point around which a geometric figure is enlarged or shrunk during a dilation transformation.

Front

What is a dilation?

Back

A dilation is a transformation that enlarges or shrinks a geometric figure from a center of dilation using a scale factor.

Front

What is a scale factor?

Back

A scale factor is the ratio of any two corresponding lengths in two similar geometric figures.

Front

What does collinear mean?

Back

Collinear is when three or more points lie in a line.

Front

What is the midsegment theorem?

Back

The midsegment theorem states that the segment connecting the midpoints of two sides of a triangle is parallel to the third side and half as long as the third side.

Front

What is similarity in geometry?

Back

Similarity is when two shapes have corresponding angles that are congruent and corresponding sides are proportional.

Front

What is a proportion?

Back

A proportion is a statement that two ratios are equal.

Front

What is a ratio?

Back

A ratio compares the size or amount of two values.

Front

What is the side-splitter theorem?

Back

The side-splitter theorem states that if a line intersects two sides of a triangle and is parallel to the third side of the triangle, it divides those two sides proportionally.

Front

What are alternate exterior angles?

Back

Alternate exterior angles are a pair of angles formed by a transversal intersecting two lines. The angles lie outside of the two lines and are on opposite sides of the transversal.