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PA ಮತ್ತು PB ಸ್ಪರ್ಶಕಗಳನ್ನು P ಹೊರಗಿನ ಬಿಂದುವಿನಿಂದ ಎಳೆಯಲಾಗುತ್ತದೆ. PA = 7 cm ಆಗಿದ್ದರೆ, PB ಎಂದರೇನು?

A14 cm
B49 cm
C3.5 cm
D7 cm
Answer & Solution
Correct answer: D. 7 cm
ಒಂದು ಬಾಹ್ಯ ಬಿಂದುವಿನಿಂದ ವೃತ್ತಕ್ಕೆ ಹೋಗುವ ಸ್ಪರ್ಶಕಗಳು ಸಮಾನ ಉದ್ದವನ್ನು ಹೊಂದಿರುತ್ತವೆ, ಆದ್ದರಿಂದ PB = 7 ಸೆಂ.ಮೀ.
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