Algebra 2ChallengeOlympiad Geometry ShareOlympiad Geometry · Challenge problemA triangle has vertices (0,0)(0,0)(0,0), (15,9)(15,9)(15,9) and (4,13)(4,13)(4,13). How many lattice points lie strictly inside it?A787878B797979C777777D838383E159159159Check Show answer Walk through it step by step Practice more like this Review this concept