Can someone me with this problem

13.33

Step-by-step explanation:

height=2 times area over base+base

h=2 * 400/15+45

The height = 13 1/3 m.

Step-by-step explanation:

The area = (h/2)(a + b) where a and b are the bases and h = the height.

So we have the equation:

400 = (h/2)(15 + 45)

h/2 = 400 / (45+15)

h/2 = 400/60

h / 2 = 20/3

3h = 40

h = 40/3

h = 13 1/3 m.

answer:   14

step-by-step explanation:          

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this is answer of 144 cubic meters