Unit6 Vocab Flashcard

Front

What is the length of segment AB if segment A'B' is parallel to segment AB and AB=7, B'B'=3.2?

Back

AB=7, B'B'=3.2

Front

What is the term for a line segment from a vertex to the opposite side that is perpendicular to that side in a triangle?

Back

Altitude

Front

What does the Triangle Midsegment Theorem state?

Back

The segment joining the midpoint of two sides of a triangle is parallel to the third side and half the length.

Front

If ΔABC is translated and dilated onto ΔFDE, what relationship do ΔABC and ΔFDE have?

Back

Similar

Front

Which theorem states that if ∠A≅∠C and ∠DEA≅∠BEC, then ∆DEA≅∆BEC?

Back

Angle-Angle Triangle Similarity Theorem

Front

What is the definition of a midsegment in a triangle?

Back

A segment that connects the midpoints of two sides of a triangle.

Front

What is the relationship between corresponding angles in similar triangles?

Back

Corresponding angles in similar triangles are congruent.

Front

What is the relationship between the lengths of corresponding sides in similar triangles?

Back

The lengths of corresponding sides are proportional.

Front

What is the definition of congruent triangles?

Back

Triangles that are identical in shape and size.

Front

What theorem is used to prove that two triangles are congruent if two angles and the included side are equal?

Back

Angle-Side-Angle Triangle Congruence Theorem.