Proposition 30
Construction
To bisect a given arc.
Construction Steps
1. Let ACB be the given circular arc.
2. JoinAB . Bisect the chord AB at D.
3. From D, draw a line perpendicular toAB and intersecting the arc at P. Then arc ACB is bisected at P.
2. Join
3. From D, draw a line perpendicular to
Original statement
τὴν δοθϵῖσαν πϵριϕέρϵιαν δίχα τϵμϵῖν.
English translation
To bisect a given circumference.
