alleryএটা বহিঃবিন্দু P-ৰ পৰা PA আৰু PB স্পৰ্শক দুডাল টনা হৈছে। যদি PA = 7 cm, তেন্তে PB কিমান?
A14 cm
B49 cm
C3.5 cm
D7 cm
Answer & Solution
Correct answer: D. 7 cm
এটা বহিঃবিন্দুৰ পৰা বৃত্তলৈ টনা স্পৰ্শকবোৰৰ দৈৰ্ঘ্য সমান, গতিকে PB = 7 cm।
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