Class 8 Mathematics – Mensuration 1. Introduction Mensuration is the branch of mathematics that deals with measuring geometric figures in terms of length, area, and volume. It helps...
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...
Class 8 Mathematics – Algebraic Expressions and Identities 1. Introduction Algebraic expressions are combinations of numbers, variables, and arithmetic operations. Variables represent...
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/...