5x1/2= is the answer greater than or less than 5 why

The answer is 5/2 or 2 1/2. It's less than 5.

Step-by-step explanation:

The answer is less than 5 because multiplying by a proper fraction makes a number smaller.                                

step-by-step explanation:

see if this :

for this case we have that by definition, the surface area of a cylinder is given by:

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a