Final answer:
The volume of the oblique circular cylinder with equal radii and heights is 50 in³.
Step-by-step explanation:
To find the volume of the oblique circular cylinder with equal radii and heights, we use the same formula for the volume of a right circular cylinder, which is V = πr²h. Since the radii of both cylinders are equal, the volume of the oblique cylinder will also be 50 in³, just like the right circular cylinder. Therefore, the correct answer is a) 50 in³.