The pressure angle of two gears in a mesh is φ = 20°. The gear ratio is 3 and the number of teeth on the pinion is 20. The module is given to be 8 mm. The addendum is one module. Find the path of contact of these two gears?#

• A. 21.324 mm
• B. 12.543 mm
• C. 56.343 mm
• D. 39.458 mm