To calculate the surface area of a sphere use the formula - 4pr2 r being the radius of the sphere. and 'p' being pi 3.14...
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Surface area of a globe = 4*pi*radius2
Please provide contact surface area of multimill
Find the area of each face separately and then add them together for the total surface area.
Consider it as cylinder..
Using the dimensions you're given and those that you can calculate . . .-- Calculate and write down the area of each face of the pyramid.-- Then add up all of the individual areas.-- The sum is the surface area of the pyramid.