A spherical balloon has a circumference of 23 cm what is the approximate surface area of the balloon to the nearest Square centimeter

Answer 1

To find the surface area of a spherical balloon, we first need to find the radius of the balloon:

Circumference = 2πr
23 = 2πr
r = 23 / (2π)
r ≈ 3.66 cm

Now, we can calculate the surface area of the balloon using the formula:

Surface Area = 4πr^2
Surface Area = 4π(3.66)^2
Surface Area ≈ 168.87 cm^2

Therefore, the approximate surface area of the balloon to the nearest square centimeter is 169 cm^2.