9.3 Arcs and Angles 1b

What happens when you inscribe and angle in a semicircle?

Click and drag point D. What do you notice about angle D? What do you notice about the relationship between angle B and angle C?

Angles Inscribed in a Semicircle Conjecture: Angles inscribed in a semicircle are _____________.

Select all that apply
  • A
  • B
  • C
Check my answer (3)

Select all that apply
  • A
  • B
  • C
Check my answer (3)