Step-by-step explanation:
Pythagoras theorem may be used :
as we can see pq iS perpendicular on oq
OQ²+pq² = op²
x² + (9)² = (3)²
x²+81= 9
x² = 81-9
x²= 72
x = √72
x = 8.48528137 ✓
Answer:
x² + (9)² = (3+x)²
x²+81= 9+ 6x +[tex]x^{2}[/tex]
6x=72
x=12
