alleryപൈയെ 22/7 ആയി എടുക്കുമ്പോൾ, 7 സെ.മീ ആരമുള്ള ഒരു വൃത്തത്തിന്റെ വിസ്തീർണ്ണം എത്ര?
A154 cm²
B49 cm²
C44 cm²
D308 cm²
Answer & Solution
Correct answer: A. 154 cm²
വൃത്ത വിസ്തീർണ്ണം പൈ r വർഗ്ഗീകരിച്ചിരിക്കുന്നു, അതിനാൽ (22/7) x 49 = 154 ചതുരശ്ര സെന്റീമീറ്റർ.
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