SOLUTION: 1. what is the formula for surface area of a cube when teacher says (area of all surfaces). 2. what is the formula for lateral surface area of a cylinder.

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Question 133684: 1. what is the formula for surface area of a cube when teacher says (area of all surfaces).
2. what is the formula for lateral surface area of a cylinder.
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
1. a cube has 6 equal faces __ each face is a square __ if x is the length of an edge of the cube
__ then x^2 is the area of one face and 6x^2 is the surface area of the cube

2. the lateral surface area of a cylinder is just a rolled up rectangle
__ the sides are the length of the cylinder and the circumference of the cylinder
__ the circumference is 2*pi*r (r is the radius of the cylinder), so the lateral area is 2*pi*r*L