Komatsu Crawler Excavator PC4000 Loading Cat 785B

Machines used for excavating earth and rocks and loading them on a dump truck. The size ranges from small ones (PC78MR-6) used in civil engineering to super large ones used in mines (PC8000-6).

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Komatsu Crawler Excavator PC4000. Video and News

Toquepala, Open Pit Mining Operation, Komatsu 930E

Toquepala is a porphyry copper deposit in the southern sierra, inland from the port of llo. It is worked as an open pit.

The Komatsu 930E is an Ultra Class off-highway hauler built by Komatsu. It is notable for being one of the largest models of trucks ever manufactured.
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Toquepala, Open Pit Mining Operation, Komatsu 930E

Elearn Geometry Problem 51

See complete Problem 51
Fagnano's Triangle Problem. Level: High School, SAT Prep, College geometry

Post your solutions or ideas in the comments.