These are 2-dimenstional shapes. they are made of straight lines, and the shape is “closed” (all the lines connect).

The height, h, of a cylinder is 5 units less than 3times its radius, r. which expression represents the height of the cylinder in terms of its radius

As a manufacturer of golf equipment, the spalding corporation wants to estimate the proportion of golfers who are left-handed. how many golfers must be surveyed if we want 99% confidence that the sample proportion has a margin of error of 0.025? assume that a previous study suggests that 20% of golfers are left-handed.

Aperson is shopping for a new snowmobile. the probability that someone buys an arctic cat is 39%, a polaris is 27% and a ski doo is 18%