
Do you know what is surface area? Surface area is the area of a given object. Surface area is commonly denoted S. Surface area is mostly used to find an area of a 3dimensional object. A sphere is a threedimensional shape which looks like round ball. Surface Area of a Sphere is the measure of how much exposed area a sphere has and it's measured in square units. For example, see the calculator mentioned in this page where by putting radius you will get surface area. The formula for finding the surface area of a sphere is given by, Surface area=4$\pi r^{2}$ 
Write down the radius of the given sphere from the question.
Substitute this value in surface area equation and find out the answer.
If the radius of a sphere is 5cm, what is the surface area of that?
It is given that,
r=5cm
The equation to find out the surface area is,
Surface area=4$\pi r^{2}$
Surface area=4×3.14× $5^{2}$
Surface area=314cm^{2}
Surface area of the given sphere is 314cm^{2}
Determine the surface area of a sphere whose radius is 3cm?
Given that,
r=3cm
The equation to find out the surface area is,
Surface area=4$\pi r^{2}$
Surface area=4×3.14× $3^{2}$
Surface area=113.04cm^{2}
Surface area of the given sphere is 113.04cm^{2}
More Surface Area Calculator  
Surface Area of a Cube Calculator  Torus Surface Area Calculator 