Two tunnels and wide are connected with each other at the right angel see Figure. Workers carry tu...: ответ на тест 1046103 - Математика

Two tunnels  and  wide are connected with each other at the right angel (see Figure). Workers carry tubes of different length along these tunnels. Indicate in meters the greater length of the tube which can be carried along these tunnels in horizontal position.  (ignore the thickness of the tube).

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Channel Tunnel
The construction of the Channel Tunnel, also called the Euro Tunnel or Chunnel, is one of the  26______ technological and engineering feats of the 20th century.
In 1986, after almost 200 years of debate and planning (the idea of an undersea tunnel linking Britain with France was first 27______ in talks with Napoleon), the governments of both countries finally 28_____ to start construction and signed a treaty.
Engineers 29_____  a huge challenge. Not only would they have to build one of the longest tunnels in the world; they would have to convince the public that passengers would be 30_____ in a tunnel this size. Tunnel fires were common at this time. How did the engineers 31_____ this problem? They built an escape route.
The Channel Tunnel, actually consists 32_____ three tunnels. In between the two full-sized train tunnels there is a smaller service tunnel that can be used as an emergency escape route. There are connections between 33____ and the train tunnels every 375 meters. Just one year after the Chunnel opened, this engineering design was put to the test. Thirty-one people were trapped in a fire that broke out in a train 34_____ from France. The design worked. Everyone was able 35____ through the service tunnel.

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