Question

@wolf1728

Answer 1

The sine of 45 degrees = (sq root of 2)/2
The sine of 45 degrees = (5*sq root(2)/2)/u
Therefore,
(sq root of 2)/2 = (5*sq root(2)/2)/u
u= (5*sq root(2)/2)/ (sq root of 2)/2
u = 5
It's an isosceles triangle so side v = other side = (5*sq root(2)/2)
So, the answer is C

Answer 2

Thank you!

Answer 3

Could you help me with one more question? I think I solved it properly.

Answer 4

I think it's C

Answer 5

@wolf1728

Answer 6

Yes it looks like C
x = sq root (8)
x = 2 * sq root (2)
y=2 (it's an isosceles triangle)