8th Grade Unit 1 Review

Select ALL the statements that are TRUE.

• Two triangles with same side lengths are always congruent.

• Two squares with same side lengths are always congruent.

• Two polygons with the same side lengths are always congruent

• Two scaled copies are always congruent.

• Two polygons with a rigid transformation are always congruent.

If Angle a equals 30 degrees, find the measure of angle c.

• 30 degrees

• 180 degrees

• 150 degrees

• 35 degrees

Using the image, what is the measure of angle y?

• 76 degrees

• 104 degrees

• 180 degrees

• 360 degrees

Select ALL the true statements about Angle x and Angle z.

• Angle x and Angle z are vertical angles

• Angles x and Angle z are alternate interior angles

• Angle x and Angle z are congruent

• Angle x and Angle z equal 104 degrees

If Angle 5 is 40 degrees, what is the measure of Angle 1?

• 40 degrees

• 140 degrees

• 180 degrees

• 50 degrees

Lines AC and DG are parallel. Angle BAE = 31 degrees and Angle ABR = 142 degrees. Find the measure of Angle AEB.

• 31 degrees

• 142 degrees

• 111 degrees

• 38 degrees

Using the following image, what is the measure of Angle FDE?

• 111 degrees

• 38 degrees

• 31 degrees

• 180 degrees

What rigid transformation takes the blue polygon to the green polygon?

• reflection over the x-axis

• rotation of 90 degrees counterclockwise around the origin

• translation down 5 units and left 2 units

• translation of 2 units right and then 5 units up

The point (-2,10) undergoes a translation of 8 units right and 6 units down. What are the coordinates of the new point.

• (8, -6)

• (6, 4)

• (-6, -4)

• (10, 16)

If Line AB has a midpoint of M, what will happen when the line is rotated around point B 180 degrees.

• Line AB will be in the same spot with A and B switched

• Line AB will be parallel to the new line AB

• Line AB will be doubled or extended

• Line AB will not change