Tennis balls are sold in cylindrical canisters that hold three balls. If the height of the canister is 9.6 inches and the stacked balls touch the sides and bases of the cylinder, what is the surface area of one of the tennis balls? Use 3.14 to approximate pi and round your answer to the nearest tenth of a unit. 9.6 in

Compute the cross-sectional area of the grooved block shown. Round the answer to 1 decimal place.

The length, L, of the point on any standard 82° included angle drill can be calculated using the formula L = 0.575 , where represents the diameter of the drill. Determine the lengths of the following drill points with the given diameters. Round to 3 decimal places for inches and 1 decimal place for millimeters. a. 12 b. 14 c. 38 d. 10 mm e. 25 mm f. 45 mm