Mysterious 'three-sided' pyramid on Mars fuels speculation about advanced alien civilizations

Evidence of alien life or cosmic pyramid scheme? A documentary filmmaker sparked a discussion of advanced Martian civilizations after sharing footage that appeared to depict a “three-sided pyramid” on ...
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Area and perimeter of triangle in coordinate plane

Timestamps: 0:00 Intro 2:46 Find the Perimeter 6:10 Find the Area Corrections: 4:02 Coordinate Point should be (2,3) Answer ...