$\"\"$

Expression for surface area of the cylinder is $\"\"$ .

$\"\"$ (Original expression)

$\"\"$ (Evaluate the powers $\"\"$ )

$\"\"$ (Associative property of multiplication) \ \

$\"\"$ (Multiplication)

$\"\"$ (Substitution property: $\"\"$ and $\"\"$ )

$\"\"$ (Addition)

$\"\"$ (Simplication)

Therefore, the surface area of the cylinder is $\"\"$ .

$\"\"$

The surface area of the cylinder is $\"\"$ .