Alex needs to buy compressed air to fill empty cylindrical tanks for his tire store. Each tank is 12 feet deep and has a radius of 6 feet. What is the volume of compressed air needed to fill 5 tanks? (Use 3.14 for π.)
so volume=height times area of base base =circle so area of base=area of circle=pir^2 volume=h(pi)r^2 h=12 r=6 pi=3.14 aprox subsitute volume=12(3.14)6^2 volume=12(3.14)36 volume=1356.48 that is vol of 1 tank 1356.48 times 5=6782.4
