Answer:
Total area: 314 km
Area of the 90 arc: 78.5 km
Step-by-step explanation:
total area/4
314/4=78.5 exactly
Going down stream the boats going 21 mph and upstream it's 3 miles per hour so the current im guessing is 7 mph
Answer:
what to divide
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given
height of prism 
Area of base 
Volume of a rectangular prism



So, volume of Prism is 