Answer:
2n-4
Step-by-step explanation:
it isn't actually lololololol reeeeèeee. Nah jk it is
t=63
2t = 126
63/2
divide by five which is the greatest common factor 315/10÷5
63/5
once we know 2 of the angles we can find a third. once we have all 3 angles we only need one side length to tell us how big it is.
