1. The lesson is about Similarity and Scale Drawing, which involves understanding how shapes can be proportionally enlarged or reduced while maintaining their shape. 2. Here's a question related to this topic: **Problem:** A scale drawing of a park is made with a scale of 1 cm representing 50 meters. If the length of a rectangular pond in the drawing is 6 cm and the width is 4 cm, what are the actual dimensions of the pond? 3. **Formula:** To find the actual size, multiply the drawing measurement by the scale factor. 4. **Calculation:** - Actual length = $6 \text{ cm} \times 50 = 300$ meters - Actual width = $4 \text{ cm} \times 50 = 200$ meters 5. **Answer:** The actual dimensions of the pond are 300 meters in length and 200 meters in width. This problem helps understand how to use scale factors to convert measurements from drawings to real-world sizes.