calculate the area of circle having diameter 7cm

To find the area of a circle with diameter 7, we need to first find the radius of the circle. The radius is half of the diameter, so:

radius = diameter / 2 = 7 / 2 = 3.5

Now that we have the radius, we can use the formula for the area of a circle:

area = pi * radius^2

Plugging in the values:

area = pi * 3.5^2

Simplifying:

area = 3.14 * 3.5^2

area = 3.14 * 12.25

area ≈ 38.48

Therefore, the area of the circle is approximately 38.48 square units.


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