Find the surface area of the cylinder. 5 cm
8 cm
The surface area of the cylinder is 40 cm2.
(Simplify your answer. Type an exact answer in terms of st.)

step-by-step explanation:

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thus, the first answer choice, y = sec x, is the correct one

place r′ so that qr′ is parallel to the tangent.

now we get that ∠r′py=∠pr′q, where y is on the tangent, on the opposite side of p from x.

also, because of the symmetry, ∠r′py=∠qpx.

finally, note that no matter where we place r, as long as it's on the correct arc, we have ∠prq=∠pr′q.

stringing all these equalities together, we end up with ∠prq=∠qpx.

this picture will show how its going to look like.

hope this by jack monhen