Allied angles trigonometry

The radius of a circle is given as 15 cm and chord AB subtends an angle of 131^(@) at the centre C of the circle . Using trigonometry. calculate : the length of AB,

Prove by vector metod the following formula of plane trigonometry cos(alpha-beta)=cosalpha cosbeta+sinalpha sinbeta

Trigonometry. Trigonometric Functions. Introduction . Angles Trigonometric Functions Of Sum And Difference . Trigonometric Equations. Introduction to trigonometry.

Class 10 Maths Ex 9.1 examples (Part 2) Ch 9 Some Applications of Trigonometry (Heights & Distances)

Application Of Trigonometry Class 10 | CBSE Class 10 Height And Distance

One angle of a triangle is thrice the smallest angle and the other angle is five times the smallest angle. Find the three angles.

Fill in the blanks to make the following statements true: Sum of the angles of a triangle is ............ An exterior angle of a triangle is equal to the two ............ opposite angles. An exterior angle of a triangle is always ............ than either of the interior opposite angles. A triangle cannot have more than ............ right angles. A triangles cannot have more than ............ obtuse angles.

Identify each of the given pair of angles as alternate angles, co-interior angles or corresponding angles or none of these in the given figure: angle5, angle2

Identify each of the given pair of angles as alternate angles, co-interior angles or corresponding angles or none of these in the given figure: angle1, angle6