It this circumference of a circle is 44cm. find its area
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The circumference of a circle is 44cm.find it's area? And also find the area of semicircle
To find the area of a circle, we first need to determine the radius of the circle using the given circumference.
The formula to calculate the circumference of a circle is:
C = 2πr
Given that the circumference of the circle is 44 cm, we can solve the equation for the radius (r):
44 = 2πr
To find the value of r, we divide both sides of the equation by 2π:
r = 44 / (2π)
r ≈ 7.0 cm (approximately)
Now that we've found the radius (r), we can use the formula for the area of a circle to calculate its area.
The formula to calculate the area of a circle is:
A = πr²
Plugging in the value of r:
A = π(7.0)²
A ≈ 154 cm²
Therefore, the approximate area of the circle is 154 cm².