Constructions and loci

What you'll learn

1. 1

   Imagine you're a pirate 🏴‍☠️ hiding treasure on an island! You bury it exactly 5 paces from a big palm tree 🌴 and 3 paces from a rock 🪨.

2. 2

   What shape do you draw around the tree to show all spots that are 5 paces away?

3. 3

   Let's find a point that is 4 cm from point A and 3 cm from point B. 📏

4. 4

   Use the compass to draw a circle with radius 4 around point A. Then do the same around point B with radius 3. Where do they meet?

5. 5

   If you draw a circle radius 5 cm around point P, and another radius 5 cm around point Q, how many places can the treasure be?

6. 6

   Now try a harder one: find a point 6 cm from X AND 4 cm from Y. The circles will cross!

7. 7

   When two circles cross, the crossing points are called...