How many ____s in a quadrilateral? The answer: 4.

noun

1. A corner whether constituting a projecting part or a partially enclosed space

   "They sheltered in an angle of the building."

2. The figure formed by two lines extending from the same point
3. A measure of an angle or of the amount of turning necessary to bring one line or plane into coincidence with or parallel to another
4. The direction from which someone or something is approached

   "soldiers being attacked from every angle"

5. The precise viewpoint from which something is observed or considered

   "a camera angle"

6. A sharply divergent course

   "The road went off at an angle."

verb

1. To turn or proceed at an angle

   "The road angles up the hill."

2. To turn, move, or direct at an angle

   "slipped the key in and angled it to one side"

3. To present (something, such as a news story) from a particular or prejudiced point of view slant

   "angled stories toward the newspaper's political preferences"

verb

1. To fish with a hook
2. To use artful means to attain an objective

   "angled for an invitation"

noun

1. A member of a Germanic people that invaded England along with the Saxons and Jutes in the fifth century a.d. and merged with them to form the Anglo-Saxon peoples

noun

1. Bracket

noun

1. An iron cleat for joining parts of a structure at an angle
2. A piece of structural steel rolled with an L-shaped section

noun phrase

1. The acute angle between the direction of the relative wind and the chord of an airfoil

noun phrase

1. The angle formed by the line of sight and the horizontal plane for an object below the horizontal

noun phrase

1. The angle formed by the line of sight and the horizontal plane for an object above the horizontal

noun phrase

1. The angle that a line (such as a ray of light) falling on a surface or interface makes with the normal drawn at the point of incidence