Use `pi=22/7` किसी 176 मीटर परिधि वाले वृत्ताकार पार्क के चारों ओर 7 मीटर चौड़ा रास्ता है। रास्ते का क्षेत्रफल हैA. `1386 m^(2)`B. `1472 m^(2)`C. `1512 m^(2)`D. `1760 m^(2)`

Use `pi=22/7` किसी 176 मीटर परिधि वाल�

1.	Use `pi=22/7` किसी 176 मीटर परिधि वाले वृत्ताकार पार्क के चारों ओर 7 मीटर चौड़ा रास्ता है। रास्ते का क्षेत्रफल हैA. `1386 m^(2)`B. `1472 m^(2)`C. `1512 m^(2)`D. `1760 m^(2)`
Answer» Correct Answer - A पार्क की त्रिज्या `=176/(2pi)=28m` `implies` Area of road `=pi(28+7)^(2)-pi(28)^(2)=pi(35+28)(35-28)` `=22/7xx7xx63=1386m^(2)`

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