The cylinder's diameter and height are both 39.2 millimeters. What is the surface area of this cylinder?

A = 7,241.2454026112 square mm.

or exact : A = 2,304.96‬*π sq mm

Step-by-step explanation:

Cylinder formula: A = π * r^2 + 2 * π * r * h + π*r^2

is the surface area.

d = 2r = 39.2 mm

h = 39.2 mm

r = 19.6 mm

A = π * r^2 + 2 * π * r * h + π*r^2

A = 2 * π * (19.6) ^2 + 2π (19.6) * (39.2)

A = 2,413.748467537 + 4,827.496935

A = 7,241.2454026112 square mm.

or

A = 2*pi * (768.32‬ + 384.16)

A = 2*1,152.48‬ * pi

A = 2,304.96‬*π sq mm