Can please someone help me? The question is in the picture. Thank you

Answer:
WUV=90
SO,WUV TRIANGLE IS A RIGHT TRIANGLE
WV=X-1+2
WV=X+1
(X-1)²+(2X-4)² =(X+1)²
x²-2x+1+4x²-16x+16=x²+2x+1
x²+4x²-x²-2x-16x-2x+1+16-1=0
4x² -20x+16. =0
x²-5x+4. =0
(x-4)(x-1). =0
x=4 or X=1
so the answer is option B
x=4