# What will be the length of OM. If OM is perpendicular to AB?

In a circle with center at O (0,0) and radius 5 cm, AB is a chord of length 8 cm. If OM is perpendicular to AB, then the length of OM is:

- 4 cm
- 1 cm
- 2.5 cm
- 3 cm

In a circle with center at O (0,0) and radius 5 cm, AB is a chord of length 8 cm. If OM is perpendicular to AB, then the length of OM is:

- 4 cm
- 1 cm
- 2.5 cm
- 3 cm