Question

find the surface area of the sphere with the given dimension . leave answers in term of pi.

Diameter: 16cm

Answer 1

\[256cm \pi\]

Answer 2

\[128cm \pi\]

Answer 3

\[32cm \pi\]

Answer 4

\[1024cm \pi\]

Answer 5

@antwone

Answer 6

Do you know the formula for the surface area of a sphere?

Answer 7

Surface area of sphere:
\(A = 4 \pi r^2\)
d = 16 cm. The radius is half the diameter.
Now replace r with 8 cm, and calculate A.

Answer 8

@mathstudent55 :i got 100.48 ...

Answer 9

Don't use 3.14 for pi. Leave pi as pi.
If you use the formula, you get:
\(A = 4 \times \pi \times (8~cm)^2\)
First, calculate \(8^2\). Then multiply that by 4. The answer is the number you get times pi.