Answer: AC=12 cm
Step-by-step explanation:
To solve this problem you must apply the law of sines, as you can see below:

Where:
a=13
A=85.2°
B=71.6°
Therefore, you must solve for b, then, you obtain that the lenght AC asked in the problem above is:

Answer:
How do you except me to know
Step-by-step explanation:
Bruh I came here to find the Awnser not to actually work for it
We have,

Introduce variable
such that 
The sum
is therefore 
So,
(sadia's age)
(father's age)
Hope this helps :)
So the first step is to have a line segment.
Put your compass on one of the points and extend the compass to be slightly more than half. Just a bit over half.
Mark a small curvy line above your segment and on the bottom at that length.
Now pick up the compass, don't change the length of extension, and put it on the other point of your segment.
Mark above and below your segment like before so it can intersect.
draw a line through the two intersections.
I hope I answered your question.