Find the circumference and area of a circle with radius 8 cm. Express your answer in terms of π.
To find the circumference of a circle, you can use the formula:
Circumference = 2πr
where r is the radius of the circle.
Given that the radius is 8 cm, we can substitute this value into the formula:
Circumference = 2π(8)
Circumference = 16π cm
So, the circumference of the circle is 16π cm.
To find the area of a circle, you can use the formula:
Area = πr²
Given that the radius is 8 cm, we can substitute this value into the formula:
Area = π(8)²
Area = π(64)
Area = 64π cm²
So, the area of the circle is 64π cm².
To find the circumference of a circle with radius 8 cm, you can use the formula:
Circumference = 2 * π * radius
Substituting the given radius of 8 cm into the formula:
Circumference = 2 * π * 8 cm
Simplifying, we get:
Circumference = 16π cm
So, the circumference of a circle with a radius of 8 cm is 16π cm.
To find the area of a circle with radius 8 cm, you can use the formula:
Area = π * radius^2
Substituting the given radius of 8 cm into the formula:
Area = π * (8 cm)^2
Simplifying, we get:
Area = π * 64 cm^2
So, the area of a circle with a radius of 8 cm is 64π cm^2.
Therefore, the circumference is 16π cm and the area is 64π cm^2.
The area of a circle of radius r is A = πr^2
and C = 2πr