Answer: 4.5 inches Step-by-step explanation: Use the formula for the surface area of a sphere, SA = 4[tex]\pi[/tex]r² Plug in the surface area and solve for r, the radius: SA = 4[tex]\pi[/tex]r² 254.5 = [tex]\pi[/tex]r² 20.25 = r² 4.5 = r So, the radius is approximately 4.5 inches Log in to Reply

Answer:4.5 inches

Step-by-step explanation:Use the formula for the surface area of a sphere,

SA = 4[tex]\pi[/tex]r²Plug in the surface area and solve for r, the radius:SA = 4[tex]\pi[/tex]r²

254.5 = [tex]\pi[/tex]r²

20.25 = r²

4.5 = rSo, the radius is approximately

4.5 inches