Geometry: Semester 1 Final

Front

What is the distance formula used to calculate the distance between two points (x1, y1) and (x2, y2)?

Back

Distance = √((x2 - x1)² + (y2 - y1)²)

Front

What is a reflection in geometry?

Back

A transformation that flips a figure over a line, creating a mirror image.

Front

What is the definition of a rhombus?

Back

A quadrilateral with all four sides of equal length.

Front

What does it mean for two lines to be parallel?

Back

Two lines that never intersect and are always the same distance apart.

Front

What is the slope of a line?

Back

The ratio of the rise (change in y) to the run (change in x) between two points on the line.

Front

What is the rule for reflecting a point across the x-axis?

Back

If a point is (x, y), its reflection across the x-axis is (x, -y).

Front

What is the rule for reflecting a point across the y-axis?

Back

If a point is (x, y), its reflection across the y-axis is (-x, y).

Front

What is a transformation in geometry?

Back

An operation that moves or changes a shape in some way, such as translation, rotation, or reflection.

Front

What is the definition of congruent figures?

Back

Figures that have the same shape and size.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.