Two points A(2,8) and B(10,4) lie on line L1. What is the equation of the line L2 which is perpendicular to L1 and passes through the midpoint of [AB]?

Me because i don't understand how to do it.: )

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Match each three-dimensional figure to its volume based on the given dimensions. (assume π = 3.14.) a right cylinder with radius 4 cm and height 3 cm 314 cu cm a cone with radius 5 cm and height 12 cm 160 cu cm a pyramid with base area 16 sq cm and height 30 cm 48 cu cm a pyramid with a square base of length 3 cm and height 16 cm 150.72 cu cm