Find the chordal tooth thickness and chordal addendum of a gear having an outer diameter and number of teeth 80mm and 30 respectively.
a. Chordal tooth thickness = 4.8mm, Chordal addendum = 2.4mm
b. Chordal tooth thickness = 2.4mm, Chordal addendum = 4.8mm
c. Chordal tooth thickness = 3.2mm, Chordal addendum = 2.4mm
d. Chordal tooth thickness = 2.4mm, Chordal addendum = 3.2mm
