# Lesson 3

Grid Moves

### Problem 1

Apply each transformation described to Figure A. If you get stuck, try using tracing paper.

1. A translation which takes $$P$$ to $$P’$$
2. A counterclockwise rotation of A, using center $$P$$, of 60 degrees
3. A reflection of A across line $$\ell$$

### Problem 2

Here is triangle $$ABC$$ drawn on a grid.

On the grid, draw a rotation of triangle $$ABC$$, a translation of triangle $$ABC$$, and a reflection of triangle $$ABC$$. Describe clearly how each was done.

### Solution

1. Draw the translated image of $$ABCDE$$ so that vertex $$C$$ moves to $$C’$$. Tracing paper may be useful.
2. Draw the reflected image of Pentagon $$ABCDE$$ with line of reflection $$\ell$$. Tracing paper may be useful.
3. Draw the rotation of Pentagon $$ABCDE$$ around $$C$$ clockwise by an angle of 150 degrees. Tracing paper and a protractor may be useful.