Which has the greatest surface area: two pizzas that have 10 inch diameters or one pizza that has a 20 inch diameter?

A piece of sheet metal is 1.12 meters wide. Strips each 3.4 centimeters wide are cut. Allow 3 millimeters for cutting each strip. a. Determine the number of complete strips cut. b. Determine the width of the waste strip in millimeters.

A triangular tent door has area 15 square feet. The height is five feet. What is the length of the base?

Tom Morrow wants to buy some fertilizer for his yard. The lot size is 140 ft by 160 ft. The outside measurements of his house are 80 ft by 35 ft. The driveway measures 30 ft by 20 ft. All shapes are rectangular. aWhat is the square footage of his yard that needs to be fertilized? bIf each bag of fertilizer covers 5000ft2, how many bags should Tom buy? cIf the fertilizer costs 18 per bag, what is his total cost?

Richard has a fuel tank in the shape of a right circular cylinder. The tank has a height of 6 ft and a radius of length 1.5 ft for its circular base. If 1ft3 of volume contains 7.5 gal of gasoline, what is the approximate capacity of the fuel tank in gallons?

A triangular poster has base 80 centimeters and height 55 centimeters. Find the area of the poster.