Question

Find the surface area of spheres having the following measurements.
a.r=6in
b.d=24m
c.C=7pie cm

Answer 1

4(pi)r^2

Answer 2

Is that the formula which I have. I just don't get how to solve it.

Answer 3

a: \[4\pi(6^{2})\]

b: radius is half of diameter. radius is 12.
\[4\pi(12^2)\]

c:
\[C =2\pi r\]
\[7\pi=2\pi r\]
\[r = \frac{7\pi}{2\pi}\]
\[r = \frac{7}{2}\pi\]
the surface area is.......

\[4\pi(\frac{7}{2}\pi)^2\]

Answer 4

okay sorry. The surface area for c. is actually
\[4\pi(\frac{7}{2})^2\]
mistake.

Answer 5

Thank You Ian!