Abeam
ABEAM
Perpendicular lines that that intersect at 90 degrees are right angles.
Two lines that intersect and form 90-degree angles (right angles) are "perpendicular" to each other. You would call them "perpendicular lines."
The term that describes lines that meet at right angles is "perpendicular." When two lines are perpendicular, they intersect to form four right angles (each measuring 90 degrees). This concept is fundamental in geometry and is often used in various applications, including construction and design.
They meet at right angles
on the beam
ABEAM
An oblong is another term for a rectangle therefore it has four right angles.
Complimentary angles
Perpendicular lines that that intersect at 90 degrees are right angles.
Two lines that intersect and form 90-degree angles (right angles) are "perpendicular" to each other. You would call them "perpendicular lines."
The left of a ship is port and the right is starboard. Aft is the rear of a ship and the bow is the front of a ship.
They meet at right angles
Perpendicular.
Mutually Perpendicular
A parallelogram can have four equal sides that will not meet at right angles. The term diamond can also be used in this context.
Ship Ahoy! This is a term used whist indicating the ship either by gesture or by a heading.