Answer:
separate the figure into simpler shapes whose
area can be found. Then add the areas together. Be sure than none of the simpler
figures have overlapping areas
Step-by-step explanation:
is that correct....??

Start with the standard form of a circle, where
is the center of the circle and
is the radius.

Plug in the known values.

This is the circle's equation in standard form.
Answer is
<span>B. 4 a^4/b
</span><span>
hope it helps
</span>
15cm = 6 hours
45cm = 18 hours
Answer : 18 hours