SOLUTION: please help me answer this.......
a gallon of paint covers 12 squared meters. if a spherical water tank will be painted on it's surface... how many gallons of paint are needed if
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Question 789388: please help me answer this.......
a gallon of paint covers 12 squared meters. if a spherical water tank will be painted on it's surface... how many gallons of paint are needed if the radius of the tank is 2.5
thanks...
Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
The radius of the tank is 2.5, we assume that the radius is 2.5 meters
The surface area of a sphere is given by 4 * pi * r^2 so we calculate
4 * 22/7 * 2.5^2 = 78.53981633974483096157
now divide 78.53981633974483096157 by 12 = 6.54498469497873591346
this tells us we need at most 7 gallons
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