Semester 1 Review

Front

What is a parallelogram?

Back

A parallelogram is a four-sided figure (quadrilateral) with opposite sides that are parallel and equal in length.

Front

What does it mean for two shapes to be similar?

Back

Two shapes are similar if they have the same shape but not necessarily the same size. Their corresponding angles are equal, and their corresponding sides are in proportion.

Front

How do you determine the quadrant of a point in the coordinate plane?

Back

The coordinate plane is divided into four quadrants based on the signs of the x and y coordinates. Quadrant I has (+,+), Quadrant II has (-,+), Quadrant III has (-,-), and Quadrant IV has (+,-).

Front

What happens to a point when it is rotated 90 degrees counterclockwise?

Back

When a point (x, y) is rotated 90 degrees counterclockwise, its new coordinates become (-y, x).

Front

What is a dilation in geometry?

Back

A dilation is a transformation that produces an image that is the same shape as the original, but is a different size. It is defined by a center point and a scale factor.

Front

What is a scale factor in dilation?

Back

The scale factor is a number that scales, or multiplies, the dimensions of a shape. A scale factor greater than 1 enlarges the shape, while a scale factor between 0 and 1 reduces it.

Front

What is the result of multiplying two algebraic expressions?

Back

To multiply two algebraic expressions, you apply the distributive property, multiplying each term in the first expression by each term in the second.

Front

Back

Front

What is the definition of a coordinate plane?

Back

A coordinate plane is a two-dimensional surface formed by the intersection of a horizontal line (x-axis) and a vertical line (y-axis), used to locate points using ordered pairs (x, y).

Front

What are the coordinates of a point in Quadrant I?

Back

In Quadrant I, both x and y coordinates are positive.