With less than half an hour to play South Africa decided to consolidate their lead and soak up Angola's continued pressure.
Their tactic worked and the hosts were able to hang on a vital win, which should energise the home fans and the tournament itself.
South Africa now has four points in the group, and face Morocco in the final first round game.
Angola are on a single point, and have to beat Cape Verde to attempt to progress to the quarter finals.
Khune was the man of the match for us. He was able to mobilise his people very well and there is unity among the team.