Answer:

Step-by-step explanation:
Given
See attachment for ski trails
Required
Total length of
ski trails
From the attached figure, there are 3 skis with length 
So:
The total length is:

Express fraction as improper fraction




Answer:
there is no question
Step-by-step explanation:
40 ......................
Volume of Original Prism = base area * Height = 3 * 4 = 12
After dilation factor = 12 * 3/2 = 6 * 3 = 18
In short, Your Answer would be 18 m³
Hope this helps!
If the length is taken as l , height is taken as h and breadth is taken as b . then
Area of the rectangular prism= 2( (l*b) + (b*h) + (h*l) )
hope that helps