Question

what is the surface area of this sphere?
round your answer to the nearest hundredth.
8.8 cm
square centimeters
submit

Explanation:

Step1: Find radius of the sphere

The diameter is 8.8 cm, so radius $r = \frac{8.8}{2} = 4.4$ cm

Step2: Apply surface area formula

The formula for the surface area of a sphere is $SA = 4\pi r^2$. Substitute $r=4.4$:
$SA = 4\pi (4.4)^2$

Step3: Calculate the value

First compute $(4.4)^2 = 19.36$, then $4\times19.36 = 77.44$. Multiply by $\pi$:
$SA = 77.44\pi \approx 77.44\times3.1416 \approx 243.29$

Answer:

243.29 square centimeters