alleryवर्तुळाकार झाकणाची त्रिज्या 3.5 cm असते; त्याच्या रिमची लांबी किती आहे? π = 22/7 वापरा.
A38.5 cm
B44 cm
C22 cm
D11 cm
Answer & Solution
Correct answer: C. 22 cm
किनार्याची लांबी 2 × (22/7) × 3.5 = 22 सेमी आहे.
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