With a line parallel to a side through a triangle we get similar triangles so a proportion.
AC : BC = AQ : PQ
AC = BC AQ / PQ
AC = 12.6 (7.2) / 8.4
AC = 10.8 cm
Answer: 10.8 cm
In my opinion, I would say that it was a concave, because if you look up the word concave it is, "having an outline or surface that curves inward like the interior of a circle or sphere."
I hope this helps, and if you need any additional help as to what a concave is, please refer to the link.
Cited sources
https://www.google.com/search?client=opera&q=what+is+a+concave&sourceid=opera&ie=UTF-8&oe=UTF-8
Answer:
use highlighters and go through your notes to highlight important info. I use different highlights for different sections to help separate the information. The different colors on different parts of the notes really help me know what the info for the notes was about and it's good to review them by going over them in color. Hopefully this helps :)
The answer to this is D. -7x^3-21x^2+14x.
Answer:
Step-by-step explanation:
