X/3 + 4 = -16 please answer please

The rows and columns of lattice points in a three-by-three square array are evenly spaced one unit apart. how many distinct triangles with at least one side of length 2 units can be drawn using three lattice points for the vertices?

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Need on this one asap im almost done with this subject