Question

***PLEASE HELP*** A cylinder has a radius of 1 cm and a height of 12 cm. The surface area of the cylinder is _____ cm2.

Answer 1

37.71cm^2 (37.71 cm squared)

Answer 2

actually 37.69cm2

pi × r 2 × h = 3.14159265358979 x1^2x12= 37.6991118430775

Answer 3

my answer choices are -
26Pi

24Pi

30Pi

28Pi

Answer 4

its 26Pi my apologies I calculated the area of a cylinder originally,

the formula is 2xPi x r2 + 2xPi x r x h,

= 2 x 3.14 x 1 x 1 + 2 x 3.14 x 1 x 12

= 6.28318 + 75.3982236 = 81.6814036

= 81.6814036 / Pi = 26Pi

check your answer, Pi x 26 = 81.68140

xxx