Unit Test Answers

Parallel lines r and s are cut by two transversals, parallel lines t and u. How many angles are alternate interior angles with angle 9?

The diagram below shows triangle MNR with ray NM.What is the measure of ?

The measure of angle 1 is and the measure of angle 3 is .What is the measure of angle 2 in degrees?

Based on the side lengths alone, could the triangles be similar?

Joo-Eun wants to draw a triangle with sides measuring 6 mm, 8 mm, and 11 mm. Which is true about Joo-Eun’s plan?

Yu-Xi draws a triangle with two angles measuring and . What is the measure, in degrees, of the third angle?

Isosceles triangle ABC is shown below.What is the value of x?

The two triangles below are similar. Which pair are corresponding sides?

What is the value of B?

Lines and are parallel. Which angles are congruent?

Parallel lines s and t are cut by a transversal r. Which angles are alternate interior angles?

Which set of angle measures could be the measures of the interior angles of a triangle?

What is the value of x in the diagram?

What is the measure of angle B in degrees?

Triangles 1 and 2 are similar. What ratio relates a side length of triangle 1 to the corresponding side length of triangle 2? Fill in the box to complete the ratio.