allerypi ని 22/7 గా తీసుకుంటే, 7 cm వ్యాసార్థం గల వృత్త వైశాల్యం ఎంత?
A154 cm²
B49 cm²
C44 cm²
D308 cm²
Answer & Solution
Correct answer: A. 154 cm²
వృత్త వైశాల్యం pi r స్క్వేర్డ్, కాబట్టి (22/7) x 49 = 154 చదరపు సెంటీమీటర్లు.
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