TRIGONOMETRY (XI/IIT) Measurement of Angles | Introduction of Trigonometry (Lesson/Part-1)

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

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

Find the measure of the angles of a triangle which has one of its exterior angles of 120^(@) and the two interior opposite angles in the ratio 1:2.

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,

An angle in the standard (x,y) coordinate plane has its vertex at the origin and its initial side on the positive x-axis If the measure of an angle in standard position is (1,314^@) , it has the same terminal side as an angle of each of the following measures EXCEPT:

As part of a project for his cartography elective, Adam climbs several hills to create a relief map for the woods surrounding his house. He records the vertical height of the five hills he climbed at 55 feet, 42 feet,38 feet ,50 feet and 48 feet. For his project, Adam must convert his measurements to inches. IF 1 foot=12 inches, what is the measurement , in inches, of the tallest hill Adam will have on his map?

In a triangle ABC, angle A is greater than angle B. If the measures of angles A and B satisfy the equation 2tanx -k(1+tan^2x)=0 , where k E (0, 1), then the measure of the angle Cis

If an error of 1^(@) is made in measuring the angle of of a sector of radius 30 cm, then the approximate eror in its area, is