the tape diagram models the lengths of two snowboarding trails. the combined length of the trails is 2000 meters. how long is each trail? What is the beginner trail?

By a search on google, I've find that:

For the beginner's trail, there is only one rectangle. For Expert Trail, there are 4 rectangles.

Then in total, we have 5 rectangles.

We know that the combined length is 2000 meters, then the 5 rectangles are equivalent to 2000 meters.

Then each rectangle will be equivalent to:

2000m/5 = 400m.

Now, we know that the beginner's trail has one rectangle, then the length of the beginner's trail is 400 meters long.

The expert's trail has 4 rectangles, then it is:

4*400m = 1600m long.

jml angle lkj & angle mj = lm