The active element of a certain laser is an ordinary glass rod 16 cm long and 0.7 cm in diameter.?

The active element of a certain laser is an ordinary glass rod 16 cm long and 0.7 cm in diameter. If the temperature of the rod increases by 77°C.
(a) Find its increase in length.
cm
(b) Find its increase in diameter.
cm
(c) Find its increase in volume.
cm3