Suppose a map company wants to produce a globe with a surface area of 450 in2. use the formulaa equals 4 πr squared , where a is the surface area and r is the radius of the sphere. to the nearest tenth, what is the radius of the sphere? inches
we know that [surface area of a sphere]=4*pi*r² r²=surface area/(4*pi) r=√[surface area/(4*pi)] surface area=450 in² r=√[450/(4*pi)]------> r=5.98 in------------> r=6 in
