Sprint 19 · Chapter 4

Finding Ratios And Mid-Points

Use the k:1 technique to find unknown ratios, and apply the mid-point formula for 1:1 division.

1. 1Finding Unknown Ratios
2. 2Finding Ratios and Mid-Points Visual
3. 3Why Use k:1?
4. 4Example 7: Solving for the Ratio
5. 5Example 9: Division by an Axis
6. 6Faded Example: Ratio by a Point
7. 7Division by x-axis
8. 8The Mid-Point Formula
9. 9Mid-Point Formula
10. 10Example 10: Parallelogram Diagonals
11. 11Practice: Circle Diameter