Surface Area of a Hemisphere Calculator


What is the Surface Area of a Hemisphere Calculator?

'Cuemath's Surface Area of a Hemisphere Calculator' is an online tool that helps to calculate the surface area of a hemisphere. Cuemath's online Surface Area of a Hemisphere Calculator helps you to calculate the volume of a hemisphere in a few seconds.

How to Use the Surface Area of a Hemisphere Calculator?

Please follow the below steps to find the surface area of a hemisphere:

  • Step 1: Enter the radius of the hemisphere in the given input box.
  • Step 2: Click on the "Calculate" button to find the surface area of a hemisphere.
  • Step 3: Click on the "Reset" button to clear the fields and find the surface area of a hemisphere for a different radius.

How to Find the Surface Area of a Hemisphere?

A hemisphere is defined as a three-dimensional shape that is half of the sphere. When a sphere is cut by a plane passing through its center, the shape we get is called the hemisphere. A hemisphere has a curved surface and one flat circular base.

The surface area of a hemisphere is the number of unit squares that can be fit into it and it is measured in square units. The surface area of a hemisphere is calculated by the following formula:

The surface area of a hemisphere = 3πr2, where 'r' is the radius of the hemisphere.

Solved Example:

Find the surface area of a hemisphere with a radius measuring 5 units?

Solution:

The surface area of a hemisphere = 3πr2

= 3 ×3.14 × 52

= 3 × 3.14 × 25

= 235.5 square units

Therefore, the surface area of a hemisphere = 235.5 square units

Similarly, you can try the calculator to find the surface area of a hemisphere if the radius is

a) 7units     b)13units    c) 12units

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