you can use the two right angled triangles to find the angles at the top apex.
If you ignore the triangle with the 48 degree angle, then taking the larger one,
the top angle is 90-32=58 degrees.
Now taking the smaller one, the angle at the top is 90-48=42 degrees.
Therefore the top angle in the scalene triangle at the left of the smaller
right-angled triangle is 58-42=16 degrees.
Now you have an angle and it's opposite side in the scalene triangle,
so you can use the Sine Rule to find side lengths.
This will give you the hypotenuse length of the smaller right-angled triangle
Once you have that length you can use to find the vertical height.