Synonyms and antonyms of Describing and measuring angles in British Thesaurus

at right angles to/at a right angle to ()

if one thing is at right angles to another thing, they form an angle of 90 degrees at the point where they meet

cos (abbreviation)

cosine

cosine (noun)

in a right-angled triangle, the measurement of an acute angle that is equal to the length of the side between the angle and the right angle divided by the length of the hypotenuse

cotangent (noun)

in a right-angled triangle, the measurement of an acute angle that is equal to the length of the side between the angle and the right angle divided by the length of the side opposite the angle

degree (noun)

a unit for measuring angles. Measurements are often expressed as a number followed by the symbol °

median (noun)

maths a line drawn from one of the points of a triangle to the opposite side

minute (noun)

maths one of the 60 parts of a degree (=a unit used in the measurement of angles)

oblique (adjective)

maths an oblique angle is any angle that is not 90°, 180°, or 270°

orthogonal (adjective)

forming an angle of 90° at the point of meeting

perpendicular (adjective)

maths forming a 90° angle with another surface or line

sin. (abbreviation)

sine

sine (noun)

in a right-angled triangle, the measurement of an acute angle that is equal to the length of the side opposite the angle divided by the length of the hypotenuse

tangent (noun)

in a right-angled triangle, the measurement of an acute angle that is equal to the length of the side opposite the angle divided by the length of the side between the angle and the right angle

tight (adjective)

a tight angle is a very small angle that gives you very little space to do something