How to Find the Area of a Hemisphere?

How to calculate the area of a hemisphere when radius is given?

Hemisphere Area Calculation using Radius

Hemisphere is half of the Sphere which is the three dimensional object of a circle. The area of the hemisphere is half of the area of sphere.Let us learn here how to find the area of a hemisphere in this tutorial.

Formula:
Area of a Hemisphere A = 2 x π x radius²
Where,
π (Pi) = 3.14 (constant)

Let us consider an example to find the area of a hemisphere whose radius is 5cm?
Step 1:
Given,
Radius = 5cm
Applying the values in the formula,
A = 2 x π x radius²
A = 2 x 3.14 x 5²
A = 2 x 3.14 x 25
A = 157 cm²

Result:
Area of a Hemisphere,
A = 157 cm²

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