What is the surface area of the cylinder? Express the answer in terms of Pi. A cylinder with a diameter of 8 centimeters and height of 18 centimeters.

Recall the formula S A = 2 pi r squared + 2 pi r h.
152 pi Centimeters squared
176 pi Centimeters squared
304 pi Centimeters squared
792 pi Centimeters squared

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584

oof

step-by-step explanation:

answer: it is 8

step-by-step explanation:

you know why its 8