Question

The Great Pyramid of Cheops in Giza, Egypt, was completed around 2566 B.C.E. Its original height was 482 ft. Each face of the pyramid forms a 52 degree angle with the ground. To the nearest foot, how long is the base of the pyramid?

Answer 1

Draw a triangle ABC with A at the center of the base, B at the tip of the pyramid, and C at the middle of one side.

Then AC = 482 * cot 52
AC is also half the length of a base side.

Answer 2

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