Line and Angle Relationships- Review

Front

2 triangles are similar if _____________.

Back

their angles are congruent.

Front

The Triangle Sum Theorem states that the sum of all angles in a triangle is ______.

Back

180°

Front

Find the missing angle if one angle is 34° and another is 112°.

Back

34° + 112° + x = 180°; x = 34°.

Front

Are the triangles with angles 60°, 70°, and 50° similar to triangles with angles 60°, 70°, and 50°?

Back

Yes

Front

What is the definition of similar triangles?

Back

Triangles that have the same shape but not necessarily the same size.

Front

If two angles of one triangle are equal to two angles of another triangle, what can be said about the triangles?

Back

The triangles are similar.

Front

What is the relationship between corresponding sides of similar triangles?

Back

The ratios of the lengths of corresponding sides are equal.

Front

If triangle A has sides of length 3, 4, and 5, and triangle B has sides of length 6, 8, and 10, are they similar?

Back

Yes, they are similar because the sides are in proportion (1:2).

Front

What is the angle relationship in complementary angles?

Back

The sum of complementary angles is 90°.

Front

What is the angle relationship in supplementary angles?

Back

The sum of supplementary angles is 180°.