Respuesta :

Answer:

10 mi³

Step-by-step explanation:

Since it is a pyramid, the formula is V = 1/3 Bh

So...

V = 1/3(1/2)(3*4)(5)

V = 1/3 (1/2*12)(5)

V = 1/3 (6)(5)

V = 1/3 (30)

V = 10