Respuesta :
the surface area of a sphere:
A = 4 pi r^2
where pi = 3.1416
r is the radius
since diameter is given
r = d / 2
r = 16 / 2
r = 8
A = 4 pi (8^2)
A = 804 sq in is the surface area of the disco ball
A = 4 pi r^2
where pi = 3.1416
r is the radius
since diameter is given
r = d / 2
r = 16 / 2
r = 8
A = 4 pi (8^2)
A = 804 sq in is the surface area of the disco ball
By using the general formula for the surface area of a sphere, we will see that the surface area of the disco ball is 804 in^2
How to find the surface of a sphere?
We know that for a sphere of radius R the surface is:
S = 4*π*R^2
where π = 3.14
In this case, we know that the diameter is 16 inches, and the diameter is twice the radius, then we have:
R = (16 in)/2 = 8in
Replacing that in the surface equation we get:
S = 4*3.14*(8 in)^2 = 803.84 in^2
Rounding to the nearest square inch, we get:
S = 804 in^2
If you want to learn more about spheres, you can read:
https://brainly.com/question/10171109