Oscar uses place values to divide 63.81 by 9. His steps are shown below. What mistake does Oscar make

d

step-by-step explanation:

i used the pitagoras theoreme

144.50

step-by-step explanation:

21.5 x 13.4=288.10 divide by 2

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