Geometry Fall Semester Exam Review Part 1

Front

What is a reflection in geometry?

Back

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

Front

What is the first step in constructing an angle bisector?

Back

From point A, draw an arc that intersects the sides of the angle at points B and C.

Front

If B is the midpoint of AC, how do you find the length of AB?

Back

The length of AB is half the length of AC.

Front

How do you describe a translation of a point in coordinate geometry?

Back

A translation moves a point by adding specific values to its coordinates.

Front

What is a right isosceles triangle?

Back

A right isosceles triangle has one 90-degree angle and two sides of equal length.

Front

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

Back

Front

What is the definition of a midpoint?

Back

The midpoint of a line segment is the point that divides the segment into two equal parts.

Front

What is a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape in some way, such as translation, rotation, reflection, or dilation.

Front

What does it mean to dilate a figure?

Back

Dilation is a transformation that changes the size of a figure but keeps its shape, using a scale factor.

Front

What is the scale factor in dilation?

Back

The scale factor is the ratio of the length of a side of the image to the length of the corresponding side of the original figure.