The answer looks like it could be b
Answer:
9 in
Step-by-step explanation:
For an n-sided polygon, the length of the apothem is ...
a = r·cos(180°/n)
We assume your problem statement is saying the radius is 10 inches. For a hexagon, n=6 and we have ...
a = (10 in)cos(30°) ≈ 8.66 in
Rounded to the nearest inch, the apothem is 9 in.
Answer:
he age of girl 3 
years ago is 8.5 years .
Step-by-step explanation:
Given as :
The present age of seventh grader girl = 12 years
Let The age of her 3 years ago = x years
So The age of girl 
years ago = x years
<u>Now, According to question</u>
The age of girl 3.5 years ago = 12 - 3.5
Or, The age of girl 3.5 years ago = 8.5 years
Hence The age of girl 3 years ago is 8.5 years . Answer
Answer:
19
Step-by-step explanation:
if you do the checker method then you would find that
they add up to make a line which equals 180
so... the equation is (8x-7)+(x+16)=180
do the math and x=19
