Prentice Hall Geometry

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Vector (p. 524) A vector is any quantity that has magnitude (size) and direction. You can represent a vector as an arrow that starts at one point, the initial point, and points to a second point, the terminal point. A vector can be described by ordered pair notation left pointing angle bracket x comma y right pointing angle bracket comma  where x represents horizontal change from the initial point to the terminal point and y represents vertical change from the initial point to the terminal point.

Vector (p. 524) Un vector es cualquier cantidad que tiene magnitud (tamaño) y dirección. Se puede representar un vector como una flecha que empieza en un punto, el punto inicial, y se dirige a un segundo punto, el punto terminal. Un vector se puede describir mediante la notación de pares ordenados left pointing angle bracket x comma y right pointing angle bracket comma  donde x representa el cambio horizontal desde el punto inicial hasta el punto final, e y representa el cambio vertical desde el punto inicial hasta el punto final.
Example

A graph has a vector extending from (0, 0) to N(5, 2).

Vector ON has initial point O and terminal point N. The ordered pair notation for the vector is left pointing angle bracket 5 comma 2 right pointing angle bracket .

Vertex See angle; cone; polygon; polyhedron; pyramid. The plural form of vertex is vertices.

Vértice Ver angle; cone; polygon; polyhedron; pyramid.

Vertex angle (p. 250) See isosceles triangle.

Ángulo del vértice (p. 250) Ver isosceles triangle.

Vertical angles (p. 34) Vertical angles are two angles whose sides form two pairs of opposite rays.

Ángulos opuestos por el vértice (p. 34) Dos ángulos son ángulos opuestos por el vértice si sus lados son semirrectas opuestas.

Example

Two diagonal lines intersect, forming an X shape with angle 1 on the left, angle 2 on the right, angle 3 on top, and angle 4 on bottom.

angle 1  and angle 2  are vertical angles, as are angle 3  and angle 4 .


Volume (p. 717) Volume is a measure of the space a figure occupies. A list of volume formulas is on p. 839.

Volumen (p. 717) El volumen es una medida del espacio que ocupa una figura. Una lista de las fórmulas de volumen está en la p. 839.

Example

A rectangular prism is divided into cubes, with 12 square faces on the front face and six square faces on the top face.

The volume of this prism is 24 cubic units, or 24 . units cubed . .


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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