Sinα=h/w
w=h/sinα, we are told that h=15 ft and α=70° so
w=15/sin70° ft
w≈15.96 ft (to nearest hundredth of a foot)
Answer:
The height of the trapezoidal base is 7.2 ft.
Step-by-step explanation:
Consider the provided information.
The volume of trapezoidal prism is the area of the cross-section × the length.

Where B is the area of base, H is the length and V is the volume.
The length of the prism is 25.2ft and volume is 1279.152


Hence, the base area is 50.76 ft².
The base is trapezoid.
The area of trapezoid is 
Substitute B=50.76,
in above formula.



Hence, the height of the trapezoidal base is 7.2 ft.
Answer: 64
Step-by-step explanation:
The answer is 2 because they are divisible by two
Is their any more information to the question?