Chevron?
DELTOID
The Toblerone box is like a triangular prism; any ordinary box is like a rectangular prism.
Yellow (and black letters or symbols) for "ordinary hazards"; Orange for hazards created by temporary construction; or Pink for hazards caused by emergencies in the roadway ahead. Under the U.S. Manual of Uniform Traffic Control Devices.
it is shaped like a whale
The traffic sign that features both acute and obtuse angles is the yield sign. Typically shaped like an inverted triangle, its acute angles are formed at the top where the sides meet, while the obtuse angle is at the base. This design helps convey the message to drivers to yield to oncoming traffic in a clear and recognizable manner.
A structure shaped like an inverted U.
DELTOID
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By no means all are. Some are spherical, some are hemispherical, and some shaped like an inverted teardrop.
an inverted kiteIf it is a quadrilateral then an arrowhead. Otherwise simply call it arrow-shaped.
No; it is square-shaped, like any ordinary building.
There are no ordinary household objects shaped like a decagon. Some glasses or vases may be decagonal in shape.
The inverted U hypothesis was proposed by psychologists Robert Yerkes and John Dodson in 1908. They suggested that performance increases with arousal up to a certain point, beyond which performance declines. This relationship between arousal and performance is often depicted as an inverted U-shaped curve.
Unsure, but there are certainly many bone-shaped objects that do not seem to be just ordinary rocks.
J. S Volosin has written: 'Installation and stability of inverted pyramid-shaped plugs for closing abandoned mine shafts'
Its usually called a conventional weeder.
The inverted U theory, also known as the Yerkes-Dodson law, suggests that there is an optimal level of arousal for performance. Performance improves with arousal to a point, but beyond that point, performance declines. It is often represented as an upside-down U-shaped curve.