Special Triangles 30 60 90 Worksheet - The equilateral triangle was split down the middle, so α = 30°. Special right triangles proof (part 1) special right triangles proof (part 2) special right. The other two angles on the side were not changed, so β.
The equilateral triangle was split down the middle, so α = 30°. The other two angles on the side were not changed, so β. Special right triangles proof (part 1) special right triangles proof (part 2) special right.