गलत चेन लंबाई से मापे गए क्षेत्रफल को संशोधित करते समय, जहाँ 'e' चेन लंबाई में सापेक्ष त्रुटि है और A' परिकलित क्षेत्रफल है, वास्तविक क्षेत्रफल A का सन्निकटन किस सूत्र द्वारा किया जाता है?

Which Indian independence movement leader was primarily known for his philosophy and practice of non-violent civil disobedience?

Who gave the call for 'Do or Die' during the Quit India Movement in 1942?

Which of the following revolutionary pairs were imprisoned together in Cellular Jail and faced harsh conditions, contributing significantly to the Indian independence movement?