In a circle with centre O, OM⊥AB. If OM = 3cm and the radius is 4 cm, find AB.
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Answer:
AB=2√7cm
Step-by-step explanation:
By pythagorus theorem
AM²= OA²- OM²
=> AM² = 4²-3²
=> AM² = 16-9
=>AM = √7
then ,
AB = 2√7cm
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