# One more mathe exercise

The picture shows a sketch of escaladers in the underground station in Kyoto.

The escaladers go from A that lies on the track, over D to F, and ends in H which lies in the street level. Some of the measures are already on the picture.

- Find the lengths of D to E

- Find the angel A and the length of the escalader from A to D

The escalader from F to H is 25 meters long

- Find the high differences between tracks and street level (K to H)

- Find the length from A to K

Posted in Group10.

## 5 Responses

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1. Sorry ! We need the lenght of CE. Thanks

2. okay sorry, I missed some thing on the drawing.
A to E is 21 m
E to G is 4 m

3. ok ! thank you !

4. first question:
QUESTION 1:
(BC) perpenducular to (AE) and (DE) perpendicular to (AE).
If to lines are perpendicular to a same line,so they
are parallels
So (BC) and (DE) are parallels.

A is on (BD) and (CE) and (BC) parallel to (DE)
so, with the theorem of Thalés we have :