Explore radian measure by following these steps.

✓ 1. Move point L to set arc length t equal to arc length s.

✓ 2. Move point M to set arc length u equal to the other two arc lengths.

✓ 3. What is best estimate for the number of radians in one half circle?

m∠JOK = 1 radian
m∠KOL = 1 radian
m∠LOM = 1 radian
r = 1
s = 10.0
t = 4.0
u = 2.8