The surface area of a cylinder can be determined with this formula sa = surface area of 2 circles + surface area of side sa = (2 × π × r²) + (2 × π × r × t)
Find the value of r (radius) r = 1/2 diameter r = 1/2 × 14.2 r = 7.1 cm
Plug the numbers into the formula sa = (2 × π × r²) + (2 × π × r × t) sa = (2 × π × 7.1²) + (2 × π × 7.1 × 12.8) sa = 100.82π + 181.76π sa = 282.58π sa = 282.58 (3.14) sa = 887.3
The surface area is 887.3 cm². The answer is third option.
