the given :right angled triangle
:there are two equal sides
solution
1 if triangle name is ABC
then AB=AC
then triangle ABC is a isosceles triangle
then angle BAC =angle CBA =2X
and any triangle in life there angles sum =180
2x + 90 = 180
2x=180-90
2x=90
[tex]x = \frac{90}{2} [/tex]
x=45