1) Dilation factor = 2
So, Hypotenuse of ABC = 10/2 = 5
So, short leg = 3 & 4 [ By Triplets ]
In short, Your Answer would be: Option B
2) D) p = 90 - m, n= 90-m, n = m if parallel line have a transversal then, same side interior angles are congruent
Hope this helps!