Answer:
Step-by-step explanation:
I think you need to first find the surface area for the 3 composite shapes which is the cube and the two triangular pyramids.
Once you have the surface area for all the three, then just add all of them together.
<span>Cone Volume = (<span>π<span> • r² •<span> h) ÷ 3
radius^2 = 3*cone volume / (PI*height)
</span></span></span></span><span>radius^2 = 3*199.23 / (3.14159*9)
</span>radius^2 =
<span>
<span>
<span>
21.1389773968
</span>
</span>
</span>
radius =
<span>
<span>
<span>
4.59771</span></span></span>
Answer:
0.2kg
Step-by-step explanation:
5/25 = 0.2 which is the rate of kg per year
45 + 72......GCF is 9
(9 * 5) + (9 * 8) = 9(5 + 8)