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a line that intersect two other lines is transversar
A transversal is a line that crosses two or more other lines in the plane at different points.
It is a transversal line that intersects other lines.
A perpendicular line is a type of intersecting line that crosses the other line at a right angle.
A line of interception.
The London Subway has 11 lines. Bakerloo line, Central line, Circle line, District line, Hammersmith & City line, Jubilee line, Metropolitan line, Northern line, Piccadilly line, Victoria line and Waterloo & City line.
Barbican station is on three underground lines. Metropolitan, Circle and Hammersmith & City.
The Circle Line Unfortunately this answer is wrong! According to Transport for London the only tube line to connect all London Underground lines is the Jubilee Line.
The Central line only.
The Circle line connects with all TFL "underground" lines. It does not (directly) connect with the Emirate Air Line (the cable car link between Greenwich and the Docks) and the London Overground (an "outer" circle line around London). (Both of these are marked on the Underground Map, the latter [definitely] operated by TFL.)
there are no underground power lines but a zone holds it (power) cause the buildings need power so they hold it. and form like a circuit or you call it a underground power line.
a line that intersect two other lines is transversar
jubilee line
No they are two separate lines on the London Underground. Circle line is yellow ,Central line is black I think.
"... to the other two lines?". What other two lines? According to the question, there is only one line!
45% of the overall network is underground. Nearly all of the lines run underground through the city centre and overground in the suburbs. The busiest stations tend to the be the ones which are completely underground. The Victoria Line is the only line which is completely underground (with the exception of the train depot at Northumberland Park). All the others run partly underground.
District Line