Answer:
- [tex]\sqrt{h^2 + k^2}[/tex]
Step-by-step explanation:
- Point O has coordinates (0, 0)
- B has coordinates (h, k)
- C has coordinates (h, 0)
Use the distance formula to find the length of OB:
- OB = [tex]\sqrt{(h-0)^2 + (k-0)^2}[/tex] = [tex]\sqrt{h^2 + k^2}[/tex]
