Question 1

Select the true statement.

Accepted Answer

Dilations of a triangle are similar to the original triangle.

Answer

Dilations increase the measure of angles.

Answer

Dilations always increase the length of line segments.

Answer

Dilations of a triangle are congruent to the original triangle.

Question 2

Select the true statement.

Accepted Answer

Dilations of an angle are congruent to the original angle.

Answer

Dilations of a triangle are congruent to the original triangle.

Answer

Dilations always increase the length of line segments.

Answer

Dilations increase the measure of angles.

Question 3

Select the true statement.

Accepted Answer

Dilations take perpendicular lines to perpendicular lines.

Answer

Dilations of a triangle are congruent to the original triangle.

Answer

Dilations always increase the length of line segments.

Answer

Dilations increase the measure of angles.

Question 4

Triangle ABC and PQR are similar. Find the length of a.

Accepted Answer

5.6

Answer

3.5

Answer

1.4

Answer

7

Question 5

Triangle ABC and PQR are similar. Find the length of b.

Accepted Answer

4.8

Answer

7.25

Answer

6

Answer

3

Question 6

Which pair of triangles must be similar?

Accepted Answer

One triangle has a 35 degree and a 50 degree angle. The other triangle has a 35 degree and a 95 degree angle.

Answer

One triangle has a 30 degree and a 90 degree angle. The other triangle has a 30 degree and 70 degree angle.

Answer

Two triangles that each have a 45 degree angle.

Answer

Two triangles that are both isosceles. They each have a 52 degree angle.

Question 7

What is the slope of this line?

Accepted Answer

2/3

Answer

3/2

Answer

-3/2

Answer

-2/3

Question 8

What is the slope of this line?

Accepted Answer

-1/2

Answer

1/2

Answer

-2

Answer

2

Question 9

What is the equation of this line?

Accepted Answer

y=-1/2x+3

Answer

y=2/5x-3

Answer

y=-2/5x+3

Answer

y=1/2x+3

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