Answer:
x = 6
y = 6

z = 12
Explanation:
the ratio of sides in a 30-60-90° triangle is, respectively, 1 : 
 : 2
 : 2
therefore, 'x' must have a measure of 6
which means the hypotenuse must have a measure of 12
other triangle is a 45-45-90° triangle whose sides are in a ratio of 1 to 

this means that 'y' must be 12/
 which is 6
 which is 6

'z' must be 6
 ·
 · 
 = 12
 = 12