Find the volume.
V=1/3h(a^2+ab+b^2)

Answer:
Step-by-step explanation:
We have formula and values given:
Substitute the values and calculate:
V = 1/3*12*[(5√7)² + (5√7)(2√7) + (2√7)²] =
= 4*(25*7 + 10*7 + 4*7) =
= 4* 273 =
= 1092 in³