Three rods each of length L are hinged at their ends to form an equilateral triangle. Two rods are made of identical substance of coefficient of linear expansion alpha while the third rod is of 2alpha. When the system is heated, find the rate of change of area of triangle with temperature?

Three rods each of length L are hinged at their ends to form an equila

1.	Three rods each of length L are hinged at their ends to form an equilateral triangle. Two rods are made of identical substance of coefficient of linear expansion alpha while the third rod is of 2alpha. When the system is heated, find the rate of change of area of triangle with temperature?
Answer» ANSWER :`2L^(2)//SQRT(3)`