Answer:
$9450
Step-by-step explanation:
We will use compound interest formula:

Where
F is future amount [what we want to figure out]
P is present amount [9000]
r is rate of interest [since we want for 6 months, the annual interest divided by 2 is r. So r = 10/2 = 5% or 0.05]
t is the time [ the time period is for 6 months so t = 1 since we already converted the interest rate to 6 month chunk]
Putting in formula, we get:

Check the picture below.
now, the midsegment of a triangle, besides being half the base, we have to bear in mind that is a "mid" segment, is a segment that lies half-way along the segments it touches.
so for the triangle above, well, the midsegment DE is cutting the segment BC it two equal halves, BE and EC, that means that
.
Step-by-step explanation:
Volume = l * b * h

The answer will most likely be 56 degrees try that it should be the answer!