i need someone to show the formula for this problem and amswer i have 16 not sure
sally's art project is in the shape of a circle. she wants to put a piece of glitter string around the adge of her project has a radius of 4 inches, how much string will she need?
perimeter of a circle = 2πr
you say that r = 4
so perimeter = 2π(4) = 8π = appr 25.1 inches
8.652/1.2
To find the length of the glitter string needed to go around the edge of Sally's circular art project, you can use the formula for the circumference of a circle.
The formula for the circumference of a circle is C = 2πr, where C represents the circumference and r is the radius.
To solve this problem, we substitute the given radius value of 4 inches into the formula.
C = 2π(4)
Now, we can compute the circumference by multiplying 2π by 4.
C = 8π
The value of π, pi, is approximately 3.14159. So, we can replace π in the equation with 3.14159.
C = 8(3.14159)
Performing the multiplication:
C ≈ 25.13274
Hence, Sally will need approximately 25.13274 inches of glitter string to go around the edge of her art project.