SECTION-C The students of Ecology club of a school wanted to make a tank for dumping the bio waste collected out of the left-over food of each class of their school. For this purpose, they used some metal sheets which were kept unused in the school. They decided to make the tank in the form of a cylinder and each class was asked to use only \( 3 \pi \) sqm of the sheet. If the height of the cylindrical tank is ' \( h \) ' meters and its radius 'r' meters. Then answer the following questions:

Question

SECTION-C The students of Ecology club of a school wanted to make a tank for dumping the bio waste collected out of the left-over food of each class of their school. For this purpose, they used some metal sheets which were kept unused in the school. They decided to make the tank in the form of a cylinder and each class was asked to use only \( 3 \pi \) sqm of the sheet. If the height of the cylindrical tank is ' \( h \) ' meters and its radius 'r' meters. Then answer the following questions: