Line and Angle Relationships- Test

Front

What is the measure of angle b if it is complementary to angle a which measures 54°?

Back

Angle b = 36° (since complementary angles sum to 90°).

Front

What is the relationship between the angles in similar triangles?

Back

The corresponding angles in similar triangles are congruent.

Front

How can you determine if two triangles are similar using angle measures?

Back

If two angles of one triangle are congruent to two angles of another triangle, the triangles are similar.

Front

What is the definition of congruent angles?

Back

Congruent angles are angles that have the same measure.

Front

If two angles are supplementary, what is the sum of their measures?

Back

The sum of their measures is 180°.

Front

What is the relationship between the sides of similar triangles?

Back

The corresponding sides of similar triangles are in proportion.

Front

How many pairs of congruent angles are needed to prove two triangles are similar?

Back

At least two pairs of congruent angles are needed.

Front

What is the definition of similar triangles?

Back

Similar triangles are triangles that have the same shape but may differ in size.

Front

If triangle A is similar to triangle B, what can be said about their areas?

Back

The ratio of their areas is the square of the ratio of their corresponding sides.

Front

What is the measure of angle c if angle a is 45° and angle b is 90°?

Back

Angle c = 45° (since the sum of angles in a triangle is 180°).