2. A circle of radius 12 units is divided into 8 congruent slices.
a. What is the area of each slice?
b. What is the arc length of each slice?

Respuesta :

Answer:

a: 18pi

b: 3pi

Step-by-step explanation:

part a:

total area = 12^2*pi = 144pi

144pi/8 = 18pi

part b:

total circumference = 12*2*pi = 24pi

24pi/8 = 3pi

The area of each slice from the circel is 18π. The arc length of each side from the circumference of the circle is 3π.

What is the area of a circle?

The area of a circle is an enclosed region within a confined boundary. The area of a circle is measured as the product of π multiplied by the square of a radius.

From the information given:

  • The radius of the circle (r) = 12 units

The area of the circle = πr²

The area of the circle = π(12)²

The area of the circle = 144π

However, if the area is divided into 8 congruent(similar and equal) slices, the slice of each area will be:

=  144π/8

= 18π

The circumference of a circle = 2πr

  • If the radius = 12

The circumference of a circle = 2π(12)

The circumference of a circle = 24π

The arc length of each side from the circumference of the circle is:

= 24π/8

= 3π

Learn more about the area of a circle here:

https://brainly.com/question/402655