The answer is: a.40 cm, 65 cm, 30 cm
I know this because I took the test. (k12 7th grade math) .
the answer to the second question on the test is 4 in., 8in, 3in
The third on is 60 degrees
the fourth one is 120 degrees
the fith one is the triangle that looks the most straight and is bigger than the other one that looks straight.