alleryஒரு வட்ட வாஷர் ஆரம் 7 செ.மீ மற்றும் 3.5 செ.மீ. அதன் உலோகப் பகுதி? π = 22/7.
A154 cm²
B115.5 cm²
C192.5 cm²
D38.5 cm²
Answer & Solution
Correct answer: B. 115.5 cm²
உலோகப் பகுதி (22/7) × (7² - 3.5²) = 115.5 செமீ².
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