Hello,
it's an equilateral triangle, all sides and all angles are the same.
so they are all 4 cm sides.
4 = 2y + 6
-2y = 6 - 4
-2y = 2
y = 2 : 2
y = 1 or -1
I believe the answer is 88
1/4 is equal to 25% because there are 4 part in a whole
I think the answers are B and C
