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Circles
Circles A circle is a two-dimensional shape that is defined by a fixed distance from a center point to any point on the circle. This distance is called...
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Circles A circle is a two-dimensional shape that is defined by a fixed distance from a center point to any point on the circle. This distance is called...
Circles
A circle is a two-dimensional shape that is defined by a fixed distance from a center point to any point on the circle. This distance is called the radius.
A circle can be represented by the equation (x - h)^2 + (y - k)^2 = r^2, where:
(h, k) is the center point.
r is the radius.
Perimeter is the length of the perimeter of the circle, which is given by the formula:
P = 2πr, where P is the perimeter and r is the radius.
Area is the area of the circle, which is given by the formula:
A = πr^2, where A is the area and r is the radius.
Examples:
The center point of a circle with a radius of 5 cm is located at (2.5, 3).
The perimeter of a circle with a radius of 10 cm is 60 cm.
The area of a circle with a radius of 6 cm is π(6)^2 = 36π cm^2