Math 8 Transformations Review 2024

What is the line of reflection?

• A line that divides a shape into two equal parts.

• The line over which a figure is reflected.

• A line that represents the axis of rotation.

• A line that connects two points in a figure.

What is the difference between congruent and similar figures?

• Congruent figures are the same size and shape; similar figures are the same shape but different sizes.

• Congruent figures are different sizes but the same shape; similar figures are the same size and shape.

• Congruent figures are always larger than similar figures; similar figures can be any size.

• Congruent figures can be rotated to match similar figures; similar figures cannot be rotated.

What does it mean for two shapes to be similar?

• The shapes have the same shape but different sizes.

• The shapes are identical in size and shape.

• The shapes have different shapes but the same area.

• The shapes can be transformed into each other through rotation only.

What does it mean if two figures are congruent?

• The figures are the same size and shape.

• The figures are different sizes but the same shape.

• The figures are the same size but different shapes.

• The figures are similar but not congruent.

Which rule would result in a translation of 2 units left and 3 units up?

• (x, y) → (x - 2, y + 3)

• (x, y) → (x + 2, y - 3)

• (x, y) → (x - 2, y - 3)

• (x, y) → (x + 2, y + 3)

A turn is also called a ___________.

• Rotation

• Revolution

• Twist

• Spin

What is a transformation in geometry?

• A change in the position, size, or shape of a figure.

• A method to calculate the area of a triangle.

• A technique to draw geometric shapes accurately.

• A process to measure angles in a polygon.

What is the angle of rotation?

• The degree measure of the turn in a rotation.

• The distance traveled in a circular path.

• The speed at which an object rotates.

• The force applied to initiate rotation.

Rotating a pre-image _____ degrees will make it look upside down.

• 90

• 180

• 270

• 360

When you reflect a shape, you ______ over an axis or line.

• Rotate

• Flip

• Translate

• Scale