1
Convert to decimal = 29.3°
2
At India's latitude (average 23°N), use formula: Distance = 29.3 × 111 × cos(23°)
4
Distance = 29.3 × 111 × 0.92 = 2,993 km (approximately 2933 km actual)
Worked Example 2: Which physiographic division covers the maximum area of India?
1
List all divisions with approximate percentages
2
Peninsular Plateau = 16 lakh sq km = 48.7% of total area
3
Northern Plains = 7 lakh sq km = 21.3%
4
Himalayas = 5 lakh sq km = 15.2%
Answer: Peninsular Plateau covers maximum area
Drainage Pattern Shortcut: Remember BRAHMAPUTRA formula for major rivers:
B - Brahmaputra (longest in India), R - Rivers flow east-west in peninsular, A - Arabian Sea rivers are short, H - Himalayan rivers are perennial, M - Monsoon-fed peninsular rivers, A - Antecedent drainage in Himalayas, P - Peninsular rivers are seasonal, U - Upper reaches have gorges, T - Tributaries join at right angles, R - Radial drainage from Western Ghats, A - Alluvial deposits in plains
Climate Zones: India has 6 major climatic regions based on Koppen classification. The monsoon system dominates with 4 seasons - Winter, Summer, Southwest Monsoon, and Northeast Monsoon