Analytical & Spatial Aptitude

An ant crawls on the outer surface of a cylindrical grain bin of radius R = 1 m and height H = 4 m. Starting from the bottom at theta = 0, it travels to a point directly opposite at the top (theta = pi, z = H). What is the minimum crawling distance along the surface?

Options:

• (A) sqrt(pi^2 * R^2 + H^2) = sqrt(pi^2 + 16) approx 5.09 m
• (B) pi * R + H = 3.14 + 4 = 7.14 m
• (C) H = 4 m
• (D) 2*pi*R + H = 10.28 m