While exploring on the back side of the moon Professor A. Brayne has come upon a strange monolith. The mon...?

Question

While exploring on the back side of the moon Professor A. Brayne has come upon a strange monolith. The monolith is sitting vertically in the middle of an unexplored lunar ravine. The professor believes the monolith may have been built by an alien civilization. To determine the height of the mysterious object, the professor uses her 36-cm-long lunar core sampler (LCS). She holds the LCS vertically out in front of her, 64 cm away from her eye, and moves toward the monolith until she sees its top just over the top of her LCS and sees its just beneath the bottom of her LCS. She paces off the distance from that point to the monolith's base and finds that it is 28 m. How tall is the monolith?

Answer 1

twenty meters high mate

Answer 2

If it's the dark side of the moon, how does she see that far?