Reflections in geometry involve creating a mirror image of a shape or point across a line, called the line of reflection. The reflected image is the same distance from the line of reflection as the original shape or point, but on the opposite side. Understanding reflections is crucial for grasping symmetry and spatial reasoning in math. It's like looking in a mirror – what you see is a flipped version of yourself!
Match each term with its correct definition. Drag the definition to the correct term.
| Term | Definition |
|---|---|
| Reflection | ➡️ A transformation that flips a figure over a line. |
| Line of Reflection | ➡️ The line over which a figure is flipped. |
| Image | ➡️ The new figure after a transformation. |
| Pre-image | ➡️ The original figure before a transformation. |
| Symmetry | ➡️ The property a figure has when it looks the same after a transformation. |
Complete the following paragraph with the correct words.
When a shape is ____________ across a line of ____________, the resulting figure is called the ____________. The original shape is called the ____________. The distance from the shape to the line of reflection is the ____________ as the distance from the image to the line.
Word Bank: same, reflection, reflected, image, pre-image
Explain in your own words how to reflect a point across the y-axis. What changes, and what stays the same?
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