Acute-angled+triangle
31cosine — [ kəʊsʌɪn] noun Mathematics the trigonometric function that is equal to the ratio of the side adjacent to an acute angle (in a right angled triangle) to the hypotenuse …
32cotangent — [kəʊ tandʒ(ə)nt] noun Mathematics (in a right angled triangle) the ratio of the side (other than the hypotenuse) adjacent to a particular acute angle to the side opposite the angle …
33secant — [ si:k(ə)nt, sɛk ] noun 1》 Mathematics the ratio of the hypotenuse (in a right angled triangle) to the shorter side adjacent to an acute angle. 2》 Geometry a straight line that cuts a curve in two or more parts. Origin C16; from Fr. sécante,… …
34cosine — UK [ˈkəʊˌsaɪn] / US [ˈkoʊˌsaɪn] noun [countable] Word forms cosine : singular cosine plural cosines maths 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… …
35cotangent — UK [ˌkəʊˈtændʒənt] / US [ˌkoʊˈtændʒənt] noun [countable] Word forms cotangent : singular cotangent plural cotangents maths in a right angled triangle, the measurement of an acute angle that is equal to the length of the side between the angle and …
36sine — UK [saɪn] / US noun [countable] Word forms sine : singular sine plural sines maths 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 …
37tangent — UK [ˈtændʒ(ə)nt] / US [ˈtændʒənt] noun [countable] Word forms tangent : singular tangent plural tangents maths 1) a straight line that touches the edge of a circle but does not pass through it 2) in a right angled triangle, the measurement of an… …
38sine — I. /saɪn / (say suyn) noun Mathematics 1. a trigonometric function defined for an acute angle in a right angled triangle as the ratio of the side opposite the angle to the hypotenuse, and defined for angles of any size as the ordinate of a point… …
39tangent — /ˈtændʒənt / (say tanjuhnt) adjective 1. touching. 2. Geometry touching, as a straight line in relation to a curve or surface; passing through two (or more) consecutive points of a curve or surface. 3. in contact along a single line or element,… …
40cosecant — ► NOUN Mathematics ▪ (in a right angled triangle) the ratio of the hypotenuse to the side opposite an acute angle (the reciprocal of sine) …
