In the adjoining figure, if OC=9cm and OB= 15 cm, then BC + BD = ?
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BC + BD = 24 cm if In the adjoining figure, if OC=9cm and OB= 15 cm
Step-by-step explanation:
Refer attached picture :
BC² = OB² - OC²
=> BC² = 15² - 9²
=> BC² = 225 - 81
=> BC² = 144
=> BC² = 12²
=> BC = 12
BC = 12 cm
BD = BC = 12 cm ( Equal Tangents)
BC + BD =12 + 12 = 24 cm
BC + BD = 24 cm
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