Why Russia has many pipelines in their country ?

Explanation:

A new natural gas pipeline being built under the Baltic Sea from Russia directly to the German coast is shaking up geopolitics. Nord Stream 2, as it’s called, worries the bypassed countries in Eastern Europe, who fear losing transit fees, and is adding to friction with the U.S., which argues the link would give the Kremlin new leverage over Germany and other NATO allies. As the project nears completion, those trans-Atlantic tensions are building, with Donald Trump threatening to reduce the number of American troops in Germany partly because of the gas link.

Explanation:

The Russian Federation supplies a significant volume of fossil fuels and is the largest exporter of oil, natural gas and hard coal to the European Union. In 2017, energy products accounted around 60% of the EU's total imports from Russia.[2] According to Eurostat, 30% of the EU's petroleum oil imports and 39% of total gas imports came from Russia in 2017. For Estonia, Poland, Slovakia and Finland, more than 75% of their imports of petroleum oils originated in Russia.

6 units. ab and lo are congruent sides, and if ab= 6 units, then lo would be the same.