The angle between two sides of a triangle is increasing at the rate of 0.03 radians per second. One side of the triangle measures 9 inches, and the other is 7 inches. At what rate is the area of the triangle changing when the angle between the sides is `pi/3` ?
`A = 1/2 ab sin theta`
A.
–47.25 in. 2/s
B.
–0.4725 in. 2/s
C.
0.4725 in. 2/s
D.
47.25 in. 2/s