Question

Please help me !!!!!

1)A conical-shaped lampshade has a height of 18 centimeters and a slat height of 19.5 centimeters. Find the volume of the lampshade .

2)Find the volume of a cylinder that a height of 7 and a diagonal length of 10
please show all the work

Answer 1

1) check the top side of picture below.

2) check the bottom side of the picture below