2 becuae......................................................................................................you have 5/10
Answer: second option.
Step-by-step explanation:
You must apply 
Then, given the right triangle and the angle D, the opposite side and the hypotenuse of the triangle are the following:

Therefore, when you substitute values, you have:

Reduce the fraction, then you obtain:

The Pythagorean Proposition can help you explain this:
Answer:
50
Step-by-step explanation:
.25 goes into 100 4 times, 50 goes into 200 4 times :)