Geo Unit 4 Vocab Quiz

What does the geometric mean describe for positive numbers a and b?

• The sum of the product of a and b.

• The square root of the product of a and b.

• The difference between a and b.

• The average of a and b.

What is the center of dilation?

• The point that is equidistant from all other points after a dilation.

• The fixed point about which all other points are transformed by a dilation.

• The point that moves the furthest during a dilation.

• The point that does not move during a dilation.

What is a reduction in terms of dilation?

• A type of dilation with a scale factor less than 0.

• A type of dilation with a scale factor equal to 1.

• A type of dilation with a scale factor greater than 1.

• A type of dilation with a scale factor greater than 0 but less than 1.

What is an altitude in a triangle?

• A segment that connects a vertex of a triangle to the midpoint of the opposite side.

• A segment that connects a vertex of a triangle perpendicularly to the opposite side of the triangle.

• The longest side of a triangle.

• The height of the triangle from the base to the top vertex.

What does dilation change in a figure?

• The shape and size.

• The size but not the shape.

• The position but not the size.

• The color and texture.

What is indirect measurement?

• A method of measurement that uses direct observation.

• A method of measurement that uses formulas, similar figures, and/or proportions to measure heights or distances that cannot be directly measured.

• A method of measurement that uses estimation.

• A method of measurement that uses a ruler or tape measure.

What is the scale factor?

• The ratio of the perimeter of an image to its preimage.

• The ratio of the volume of an image to its preimage.

• The ratio of an image to its preimage.

• The ratio of the area of an image to its preimage.

What does it mean when two figures are similar?

• They have the same size and shape.

• They have the same shape but different sizes.

• They have the same shape but not necessarily the same size.

• They have the same size but different shapes.

What is an enlargement in terms of dilation?

• A type of dilation with a scale factor less than 1.

• A type of dilation with a scale factor equal to 1.

• A type of dilation with a scale factor greater than 1.

• A type of dilation with a scale factor less than 0.

Which transformations are types of similarity transformations?

• Scaling, skewing, and warping.

• Reflection, rotation, translation, and dilation.

• Enlargement, reduction, and distortion.

• Shearing, bending, and stretching.