A reservoir contains 351,680,000 liters when full. Find the depth of the water if the reservoir is in the form of the frustum of a right circular cone whose radii are 40 m and 80 m. Note: 1m³=1000 liters.
Find the volume of the frustum of a regular square pyramid if an edge of the lower base is 10√2 cm; a lateral edge is 13 cm and the altitude is 12 cm.
1. A) 35.432 m
B) 29.985 m
C) 12.854 m
D) 59.97 m
2. A) 700 cm³
B) 1400 cm³
C) 1700 cm³
D) 850 cm³