In a toy factory, 200 wooden closed cylinders of diameter 35mm and height 7cm have to be painted. What is the total surface area, in cm², that needs to be painted.

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

Describe the relationship between the angles of similar triangles and the sides of similar triangles