KJV:
So the altar shall be four cubits; and from the altar and upward shall be four horns.
NASB:
"The altar hearth shall be four cubits; and from the altar hearth shall extend upwards four horns.
KJV:
And the altar shall be twelve cubits long, twelve broad, square in the four squares thereof.
NASB:
"Now the altar hearth shall be twelve cubits long by twelve wide, square in its four sides.