Answer:
100
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
By intersecting chords theorem:

No on can explain it but it has a definition.
Answer:
y² = x² - z²
Step-by-step explanation:
x² - y² = z²
Transpose y the other side
x² - z² = y²
or
y² = x² - z²