Prentice Hall Geometry

Practice and Problem-Solving Exercises

A Practice

See Problem 1.

Tell whether the transformation appears to be an isometry. Explain.

  1. A preimage is a vertical rectangle, and an image is an equal vertical rectangle down to the right of the first.
  2. A preimage is a pentagon with vertical side on the right and horizontal side on top. An image is the same pentagon to the right of the first with vertical side on the left and horizontal side on top.
  3. A preimage is a circle, and an image to its right is a circle about the half the diameter of the first.

In each diagram, the blue figure is an image of the black figure.

  1. Choose an angle or point from the preimage and name its image.
  2. List all pairs of corresponding sides.

See Problem 2.

  1. Black rectangle PQRS has long side PQ on the left and short side PS on the bottom. Blue rectangle P’Q’R’S’, down to the left of PQRS, has side long P’Q’ on the bottom and short side P’S’ on the left.
  2. Black triangle PRT has horizontal side PT on the bottom and vertical side PR on the right. Blue triangle P’R’T’, up to the left of PRT, has vertical side PT on the left and horizontal side PR on top.
  3. Black pentagon BGWPN is left of blue pentagon S’M’R’T’N’.
    Image Long Description

See Problem 3.

Copy each graph. Graph the image of each figure under the given translation.

  1. open x comma y close rightwards arrow . open x plus 3 comma y plus 2 close

    A graph of a triangle has vertices (negative 9, 3), (negative 1, 2), and (negative 6, negative 1).

  2. open x comma y close rightwards arrow . open x plus 5 comma y minus 1 close

    A graph of a quadrilateral has vertices (negative 4, negative 1), (negative 1, 2), (5, negative 1), and (2, negative 4).

  3. open x comma y close rightwards arrow . open x minus 2 comma y plus 5 close

    A graph of a quadrilateral has vertices (negative 5, 0), (negative 5, 3), (negative 2, 3), and (1, negative 3).

See Problem 4.

The blue figure is a translation image of the black figure. Write a rule to describe each translation.

  1. A graph has a black segment extending between (negative 1, 3) and (4, 2) and a blue segment between (0, 0) and (5, negative 1).
  2. A graph has a black triangle with vertices (negative 3, 1), (negative 3, negative 5), and (negative 7, negative 5) and a blue triangle with vertices (negative 2, 0), (negative 2, negative 6), and (negative 6, negative 6).
  3. A graph has a black quadrilateral with vertices (2, 2), (3, 5), (5, 5), and (7, 2) and a blue quadrilateral with vertices (negative 2, negative 1), (negative 1, 2), (1, 2), and (3, negative 1).

See Problem 5.

  1. Travel You are visiting San Francisco. From your hotel near Union Square, you walk 4 blocks east and 4 blocks north to the Wells Fargo History Museum. Then you walk 5 blocks west and 3 blocks north to the Cable Car Barn Museum. Where is the Cable Car Barn Museum in relation to your hotel?

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Table of Contents

Prentice Hall Geometry Chapter 1 Tools of Geometry Chapter 2 Reasoning and Proof Chapter 3 Parallel and Perpendicular Lines Chapter 4 Congruent Triangles Chapter 5 Relationships Within Triangles Chapter 6 Polygons and Quadrilaterals Chapter 7 Similarity Chapter 8 Right Triangles and Trigonometry Chapter 9 Transformations Chapter 10 Area Chapter 11 Surface Area and Volume Chapter 12 Circles Skills Handbook Reference Visual Glossary Selected Answers Index Acknowledgments