local point1 = {3, 1}
local point2 = {2, 2}
local point3 = {3, 2}

function distance(a, b)
    local dist = math.sqrt(math.abs(((a[1]-b[1])^2) + ((a[2]-b[2])^2)))
    return dist
end

function angles(first,second, third)
    local dista = distance(first,second)
    local distb = distance(second,third)
    local distc = distance(third, first)
    local anglec = math.acos(((dista^2) + (distb^2) - (distc^2)) / (2*dista*distb))
    local angleb = math.asin(((math.sin(anglec)) / distc) * distb)
    anglec = math.deg(anglec)
    angleb = math.deg(angleb)
    local anglea = 180 - angleb - anglec
    return {anglea, angleb, anglec, dista, distb, distc}
end

function findit(point1, point2, point3)
    local tab = angles(point1, point2, point3)
    local all = {{tab[1], tab[4]}, {tab[2], tab[5]}, {tab[3], tab[6]}}
    local vals = {"A", "B", "C"}
    for i = 1, 3 do
        print("Angle ".. vals[i] .. " is " .. all[i][1])
        print("Line ".. string.lower(vals[i]) .. " is " .. all[i][2])
    end
end

findit(point1, point2, point3)