1.       A 23-tooth helical gear is cut with a 20° pressure-angle hob at a helix angle of 25°. The hob has a standard diametral pitch of 5. The resulting teeth have standard spur-gear dimensions in the normal plane. Find the pitch diameter, addendum, dedendum, outside diameter, normal, transverse, and axial pitch, and the transverse pressure angle.

2.       A 38-tooth helical gear is cut with a 25° pressure-angle hob at a helix angle of 30°. The hob has a standard diametral pitch of 4. The resulting teeth have standard spur-gear dimensions in the normal plane. Find the pitch diameter, addendum, dedendum, outside diameter, normal, transverse, and axial pitch, and the transverse pressure angle.