the answer is A 2.3
in order to solve this problem you have to devide 9 by 4 and you get 2.25 then round 2.25 to 2.3 and that is your answer
hope this helps
~~apple
Answer:
The length of the triangle is 3x given
The no of sides is 3x 3x 3x so 3x+3x+3x= 180
9x=180 x= 20
3x =3*20=60
3x=3*20=60
