Respuesta :

Answer:

We have the formula for pyramid volume V = (B.h)/3 => B = 3V / h

=> B = (216 . 3)/8 = 81 m2

the base area of a square pyramid : 81 m2

Step-by-step explanation:

Answer:

81cm2

Step-by-step explanation:

Volume = 1/3Base area * height

216 =1/3x * 8

3/8*216 =8/3x *3/8

x=81cm2