There are 180 degree's in a triangle. to find one side add the two sides you do know and subtract it from 180 degree's.
Your rays are
F
E
Segments
DF
DE
EF
Answer:
15.9??
Step-by-step explanation:
To find this you would do 800 + 15x where x is the amount of years.
For 9 years it would be 800 + 15(9) which is 800 + 135.
At the end of 9 years, the apartment's rent would be $935. I hope that's utilities included because... yikes...