Correct Answer: triangular

Solution : The correct option is Triangular .

The shape of the peninsular plateau in India is roughly triangular. It is often referred to as the Indian Peninsula or the Deccan Plateau. The plateau is bound by the Western Ghats on the west, the Eastern Ghats on the east, and the Vindhya and Satpura mountain ranges on the north. This triangular plateau region covers a significant portion of southern and central India.