Formal Letter Format (Block Style) Sender's Address: Your address (postal format). Date: The date the letter is written. Recipient's Address: Name, title, and address of the person/company. Subject...
Class 8 Science – Coal and Petroleum: Fossil Fuels 1. Introduction Fossil fuels are non-renewable energy sources formed from the remains of ancient plants and animals over millions of years. Main...
Class 8 Science – Crop Production and Management: Agricultural Practices 1. Introduction Agriculture is the process of growing crops and rearing animals for food, fiber, and other products. Crop...
Question: In a cyclic quadrilateral ABCD, AB = 4, BC= 5, CD = 9 and DA = 5. Find the length of the diagonal AC. (1) 8 (2) 7 (3) 6 (4) √61. Solution: AC*BD = 36+25 = 61 AC/BD = 20+45/...