Use the formula: (A = 4pi r^2)
Identify the radius (r) of the sphere
Square the radius: (r^2)
Multiply by 4
Multiply by (pi)
Write the result in square units
Use the formula: (A = 4pi r^2)
Identify the radius (r) of the sphere
Square the radius: (r^2)
Multiply by 4
Multiply by (pi)
Write the result in square units