Two fixed sides of a triangle are 18 m and 25 m in length. The angle between them is changing and the area of the triangle is increasing at a rate of 8 m 2/s. Find the rate at which the angle between the fixed sides is increasing when the area is 450V3 and the angle between the fixed sides is an acute 4 angle. Note: Write only the numerical value of the rate, the units are already written. Write the exact answer not the decimal approximation (for example write _ not 0.5) Answer: The angle is increasing at a rate of rad/s