An Isosceles-Right Triangle
- Gerry Stahl
Combine the construction methods for an isosceles triangle and for a right triangle to design a triangle that has a right angle and two equal sides. Be sure to take turns controlling the GeoGebra tools and chat about what you are doing. Work together—do not try to solve something yourself and then explain it to your teammates. Talk it out in the chat: • Make sure everyone in the team understands what was done and can do it. • Discuss what you noticed and what you wondered about the construction. • Discuss why it worked: why is the triangle you constructed always isosceles and always right-angled no matter how you drag it?