B D 5. sector of a circle 6. segment of a circle

Answer:
Area of Sector = θ × π 360 × r2 (when θ is in degrees)
Area of Segment = ( θ × π 360 − sin(θ)2 ) × r2 (when θ is in degrees)
L = θ × π180 × r (when θ is in degrees)
Step-by-step explanation: