What is the exact value of cos 30º ?
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uhhh idk u yolo?

jml angle lkj & angle mj = lm

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