It's known how the Egyptians managed to perform this feat with the simple tools they had ready and now it's time for you to consider it and try to figure it out..
String, standard measuring sticks carved from granite, a good pair of eyes, that's all. Remember, they were just as smart as you and you are just as smart as they.
- How did they align the edge N-S?
- How did they level the base so precisely?
Was it aliens?
No, that's just crazy talk.
Look at the alt text for the pyramid photo for the explanation.
Here's another ..