A circle has a total of 360°, if Samantha is eating 12° wedges off of it every day, then how many times does 12° go into 360°? 360/12, that many.
Step-by-step explanation:
Calculate length of OA, OB and AB seperately.
There should be 2 wit the same lengths for it to be an isosceles ∆
62=2w+2l
120= 2(2w)+ 2(l+21)
120=4w+2l+42
78= 4w+2l
39=2w+l
39-2w=l
Use substitution
62=2w+2(39-2w)
62= 2w+78-4w
62= -2w+78
-16=-2w
8=w
Plug w in
62=2(8)+2l
62=16+2l
46=2l
23=l
Final answer: Width=8, Length=23