Test Paper (Heron’s Formula) – Class –IX Maximum Marks: 25 1. The sides of a triangular plot are in the ratio of 3:5:7 and its perimeter is 300m. Find its area. (3 Marks) 2. Find the area of a quadrilateral ABCD in which AB = 3cm, BC = 4cm, CD = 4cm, DA = 5cm…