CBSE Class 9 Math: Ten Important Questions 1. ABCD is a rhombus and P, Q, R, S are mid-points of AB, BC, CD and DA Prove that quadrilateral PQRS is a rectangle. 2. ABCD is a rectangle and P, Q, R and...
Matter made-up of __________? And: Small particles. Matters around us exist in which form? And:3 different froms they are: solid, liquid and gas. In which medium force of attraction is maximum and...