EM-1704
Symmetry of chords and tangents
E Math · Secondary 4 · Medium · Symmetry of chords and tangents
In a circle with centre O, chord AB is 10 cm long. The perpendicular from O to AB meets AB at M. If cm, find the length of .
- 3 cm
- 5 cm
- 10 cm
- 15 cm
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