25. WHEN ALICE WANDERED INTO WONDERLAND, SHE WAS CARRYING A WOODEN CYLINDER. WHEN SHE STARTED SHRINKING, THE CYLINDER SHRANK WITH HER. THE VOLUME OF THE CYLINDER WAS DECREASING AT THE RATE OF 12 cm" AND THE HEIGHT WAS ALWAYS 3 TIMES THE BASE RADIUS. FIND THE RATE AT WHICH THE RADIUS IS DECREASING WHEN THE RADIUS IS 4 cm. THE VOLUME OF A CYLINDER IS V = Treh . 26. THE VOLUME OF A SPHERICAL BUBBLE IS INCREASING AT THE RATE OF 721 cm FIND THE RATE OF CHANGE OF THE AREA OF THE BUBBLE'S SURFACE WHEN THE VOLUME IS 36TT. NOTE THAT FOR A SPHERE: V = 4 7 AND A- 417 HINT: USE THE VOLUME INFORMATION TO FIND dr THEN USE THAT RESULT TO ANSWER dt THE AREA