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U.S. Route 1 or U.S. Highway 1 ( US 1) is a major north–south United States Numbered Highway that serves the East Coast of the United States. It runs 2,370 miles (3,810 km) from Key West, Florida, north to Fort Kent, Maine, at the Canadian border, making it the longest north–south road in the United States. [ 2]
State Route 20. State Route 20 ( SR 20 ), also known as the North Cascades Highway, is a state highway that traverses the U.S. state of Washington. It is the state's longest highway, traveling 436 miles (702 km) across the northern areas of Washington, from U.S. Route 101 (US 101) at Discovery Bay on the Olympic Peninsula to US 2 near the Idaho ...
Interstate 695 ( I-695) is a 51.46-mile-long (82.82 km) auxiliary Interstate Highway that constitutes a beltway extending around Baltimore, Maryland, United States. I-695 is officially designated the McKeldin Beltway but is colloquially referred to as either the Baltimore Beltway or 695. The route is an auxiliary route of I-95, intersecting ...
Interstate 20. Interstate 20 ( I‑20) is a major east–west Interstate Highway in the Southern United States. I-20 runs 1,539 miles (2,477 km) beginning at an interchange with I-10 in Reeves County, Texas, and ending at an interchange with I-95 in Florence, South Carolina. Between Texas and South Carolina, I-20 runs through northern Louisiana ...
In Maryland, the Interstate Highway runs 12.08 miles (19.44 km) from the West Virginia state line at the Potomac River in Williamsport north to the Pennsylvania state line near Maugansville. I-81 is the primary north–south Interstate Highway in Washington County, connecting Hagerstown with Chambersburg and Harrisburg to the north and ...
Blue Ridge Parkway. / 36.51861°N 80.93583°W / 36.51861; -80.93583. The Blue Ridge Parkway is a National Parkway and All-American Road in the United States, noted for its scenic beauty. The parkway, which is the longest linear park in the U.S., [ 3] runs for 469 miles (755 km) through 29 counties in Virginia and North Carolina, linking ...
U.S. Route 40 or U.S. Highway 40 ( US 40 ), also known as the Main Street of America (a nickname shared with U.S. Route 66 ), [ 3][ 4] is a major east–west United States Highway traveling across the United States from the Mountain States to the Mid-Atlantic States. As with most routes whose numbers end in a zero, US 40 once traversed the ...
The distance (or perpendicular distance) from a point to a line is the shortest distance from a fixed point to any point on a fixed infinite line in Euclidean geometry. It is the length of the line segment which joins the point to the line and is perpendicular to the line. The formula for calculating it can be derived and expressed in several ways.