Answer:
B
Step-by-step explanation:
you're gonna have to use the rules of trigonometry.
so you have all the angles(the other angle on the top is 45 degrees as well) and one of the sides.
let's use the far left angle, 45 degrees, as our main angle. we know the adjacent side, 7√2 / 2, but we want to find the hypotenuse and the opposite side. we can actually find the opposite side very easily. you see, in a right triangle, where the non-right angles are both the same degree, you will know that the sides adjacent to the right angle are equal. so, we can cross our options of A, C, and D off. we know now that the answer is B.
