Answer:
because it has two parts
Step-by-step explanation:
thats what the first one is
Answer: 14
Step-by-step explanation:
Given
Excavation cone measures
height 
Diameter 
Truck can dump
at a time
The volume of a cone is

Putting values

No of trips(N) required to accumulate this much volume is given by

Therefore, 14 trips are necessary to accumulate a cone of volume 
no, more than one triangle could be made with these measures
sss