Unit 7 Study Guide

Reflect the figure across the y-axis. Which is most likely the new figure?

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• 17 cm

• 13 cm

• 11 cm

• 7 cm

A transformation was performed on the following figure. What type of transformation was performed on the original figure?

• Dilation

• Reflection

• Rotation

• Translation

Lines l and m intersect, forming the angles indicated in the drawing. Which of the following statements must be true?

• ∠1 is congruent to ∠2.

• ∠1 is supplementary to ∠3.

• ∠2 is congruent to ∠4.

• ∠2 is supplementary to ∠4.

Two lines and a ray intersect at a single point as shown below. In the drawing above, what is m∠1 if m∠2 = 40°?

• 40°

• 45°

• 50°

• 55°

Which names one of the legs of the triangle pictured?

Lines l and m intersect so that the measure of ∠1 is 50°. What is the measure of ∠2?

• 40°

• 50°

• 100°

• 130°

A water slide is one side of a right triangle as shown. What is x, the length of the water slide?

• 14 ft

• 21 ft

• 26 ft

• 34 ft

The figure shows a triangle on a coordinate plane. Which of the following shows the triangle translated 3 units to the right and 1 unit down?

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Which of the following shows the figure after it has been reflected over the horizontal axis?

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