Question

am i right

Answer 1

i say yes

Answer 2

lets see the problem

Answer 3

No, i don't think so.
Look closely at angle D and angle Z, Z is more obtuse than D is

Answer 4

No it is not, this is because if you were to blow up parallelogram xyqz to were xy is 40 xq would be 8

Answer 5

and plus, 10 * 4 = 40
2 * 4 doesn't come out with the product of 16, it'd be 8