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 is correct as graphed
4:48 Coordinate Point should be (2,3) Answer is correct as graphed





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[misha]

I’m pretty sure you made a mistake… since y is (2, 4) and z is (1, -2), 4-(-)2 [y2-y1] is equal to 6, not 5.

[aahaanchawla]

The Perimeter can be simplified to 2√13(√2 + 1)