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All angles < 180 degrees are concave.
An acute angle is < 90 degrees.
So, all acute angles are concave.
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∙ 13y ago
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Does a quadrilateral have a convex or a concave angle?
concave
Calculation of contact angle?
Angle of contact is the angle between a tangent to the liquid surface at the interface and the solid surface inside the liquid. For concave surfaces, it is acute . For convex surface , it is obtuse.
What is the difference between a concave polygon and a convex polygon?
Any polygon that has an angle that is > 180º is a concave polygon. A convex polygon does not. e.g. All regular polygons are convex.
What is a definition for non convex polygon?
A simple polygon that is not convex is called concave, non-convex or reentrant. A concave polygon will always have an interior angle with a measure that is greater than 180 degrees.
How are convex polygons different from concave polygons?
A concave polygon has at least one interior angle greater than 180 degrees. A convex polygon has none of those.
Does a quadrilateral have a convex or a concave angle?
concave
Calculation of contact angle?
Angle of contact is the angle between a tangent to the liquid surface at the interface and the solid surface inside the liquid. For concave surfaces, it is acute . For convex surface , it is obtuse.
What is the difference between a concave polygon and a convex polygon?
Any polygon that has an angle that is > 180º is a concave polygon. A convex polygon does not. e.g. All regular polygons are convex.
What is a definition for non convex polygon?
A simple polygon that is not convex is called concave, non-convex or reentrant. A concave polygon will always have an interior angle with a measure that is greater than 180 degrees.
Is a jeweller's mirror concave or convex?
concave
What effects does light have on concave and convex mirrors?
Light has little or no effect on a mirror. The mirrors follow the rule: "the angle of incidence equals the angle of reflection". Concave mirrors concentrate light to a point and convex spread it out.
How are convex polygons different from concave polygons?
A concave polygon has at least one interior angle greater than 180 degrees. A convex polygon has none of those.
Is a hen decagon concave or convex?
It can be convex or concave.
Difference between concave and convex in the dark?
concave is inward, convex is outward concave is inward, convex is outward
Wing mirror is convex or concave?
The wing mirror or side mirror of a car is convex. It curves out to be able to see with a wider angle.
What are two type of lenses?
convex and concave
What is the opposite of Convex?
concave concave
