Calculate and compare the surface area of sphere A , which has a radius of 6 in., and sphere B , which has a radius of 24 in. The formula for the surface area of a sphere is 4πr2 .(1 point) Responses Sphere A has a surface area of 36π in.2 and sphere B has a surface area of 576π in.2 . This means that sphere B ’s surface area is 16 times as large as sphere A ’s. Sphere upper A has a surface area of 36 pi in. squared and sphere upper B has a surface area of 576 pi in. squared . This means that sphere upper B ’s surface area is 16 times as large as sphere upper A ’s. Sphere A has a surface area of 144π in.2 and sphere B has a surface area of 2,304π in.2 . This means that sphere B ’s surface area is 16 times as large as sphere A ’s. Sphere upper A has a surface area of 144 pi in. squared and sphere upper B has a surface area of 2,304 pi in. squared . This means that sphere upper B ’s surface area is 16 times as large as sphere upper A ’s. Sphere A has a surface area of 6π in.2 and sphere B has a surface area of 24π in.2 . This means that sphere B ’s surface area is 4 times as large as sphere A ’s. Sphere upper A has a surface area of 6 pi in. squared and sphere upper B has a surface area of 24 pi in. squared . This means that sphere upper B ’s surface area is 4 times as large as sphere upper A ’s. Sphere A has a surface area of 24π in.2 and sphere B has a surface area of 96π in.2 . This means that sphere B ’s surface area is 4 times as large as sphere A ’s.

1 answer

To calculate the surface area of both spheres, we will use the formula for the surface area of a sphere:

\[ \text{Surface Area} = 4\pi r^2 \]

For Sphere A:

  • Radius \( r_A = 6 \) in. \[ \text{Surface Area of Sphere A} = 4\pi (6)^2 = 4\pi (36) = 144\pi \text{ in}^2 \]

For Sphere B:

  • Radius \( r_B = 24 \) in. \[ \text{Surface Area of Sphere B} = 4\pi (24)^2 = 4\pi (576) = 2304\pi \text{ in}^2 \]

Now, let's compare the surface areas of the two spheres:

  • Surface Area of Sphere A = \( 144\pi \) in²
  • Surface Area of Sphere B = \( 2304\pi \) in²

To determine how many times larger Sphere B's surface area is compared to Sphere A's: \[ \frac{\text{Surface Area of Sphere B}}{\text{Surface Area of Sphere A}} = \frac{2304\pi}{144\pi} = \frac{2304}{144} = 16 \]

Thus, Sphere B’s surface area is 16 times as large as Sphere A’s.

Final Conclusion: Sphere A has a surface area of \( 144\pi \) in², and Sphere B has a surface area of \( 2304\pi \) in². This means that Sphere B's surface area is 16 times as large as Sphere A's.

So the correct response is: Sphere A has a surface area of \( 144\pi \) in², and Sphere B has a surface area of \( 2304\pi \) in². This means that Sphere B's surface area is 16 times as large as Sphere A's.