DELTOID
A triangle!
Chevron?
A triangle as in a musical instrument
There are many different types of body shapes. Some of them are; apple shaped (triangle downward), Banana shaped (straight), and pear shaped (triangle upward), and hourglass (triangles opposing).
there is something wrong with you.
deltoid
The deltoid covers the shoulder. This triangular-shaped muscle lifts the arm or turns it.
Red is the color of a triangle shaped daymark.
A structure shaped like an inverted U.
The organ that is shaped like a triangle is the LIVER.
a triangle.
A triangle!
Deltoid (delta = triangle + -oid = looks like/resembles) The deltoid muscle is a triangular shaped muscle of the upper arm. It is also known as the common shoulder muscle.
A delta, named after the Greek letter "delta" that is shaped as a triangle.
Chevron?
The Nile delta (called after the shaped of the Greek letter 'D').
There is really no reason. People just decided to make pyramids triangle shaped.