Answer:
z = 47.2°
w = 42.8°
y = 42.8°
x = 47.2°
Step-by-step explanation:
found altitude ('h') first: 6/h = h/7; h = 
found <em>base</em> by using Pythagorean Theorem:
7² + (
)² = c²
c = 
found <em>angle z</em> using Rule of Sines:
sin 90 /
= sin z / 7
arcsin z = 7 /
= 47.2°
found <em>angle w</em> by adding 90 and 47.2, then subtracting from 180 to get 42.8°
found <em>angle y</em> by subtracting m∡z from 90° to get 42.8°
found <em>angle x </em>by adding 90 and 42.8°, then subtracting from 180