[?] Find area of polygons in a geometric scene?

Questions
1

Is it possible to find a polygon area in geometric scenes?
For example, I want to find the area of a triangle kln:

scene = GeometricScene[{k, l, n, m}, {EuclideanDistance[k, n] == 3,
    PlanarAngle[{l, m, n}] == 120 \[Degree],
    Triangle[{k, l, n}], 
    GeometricAssertion[{CircleThrough[{k, l, n}], Line[{m, n}]}, 
     "PairwiseTangent"], 
    GeometricAssertion[{CircleThrough[{k, l, n}], Line[{l, m}]}, 
     "PairwiseTangent"], Polygon[{k, l, m, n}], 
    GeometricAssertion[{Line[{k, n}], Line[{l, m}]}, "Parallel"]}];
RandomInstance[scene, RandomSeeding -> 1]
2

Try:

triangle = RandomInstance[scene, RandomSeeding -> 1]["Points"]
pol = Polygon[{triangle[[1, 2]], triangle[[2, 2]], triangle[[4, 2]]}]
Area[pol]

(* 1.29904*)
3

great thanks