Lets hope i'm right.
Triangle formula: 1 / 2 b x h
y:
Half one of them. Lets do 4 since 5 would result in a decimal.
(4) = 2 x 5 = 10.
y (10) + 1 = 11
x:
Half one.
(2) = 1 x 3 = 3
Answers:
y = 11
x = 3
Hope this helps! Wait for another answer to make sure i'm right. ;) ~Pooch ♥