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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