A ball has a surface area of $A=50.27$A=50.27 mm2. What is its radius?
Round your answer to two decimal places.
The planet Mars has a radius of $3390$3390 km. What is the surface area of Mars?
Find the surface area of the following sphere.
Round your answer to two decimal places.
Find the surface area of the sphere shown.
Round your answer to two decimal places.