Accelerate JEE 2020: Solution of triangle-2 (01.08.2019)

The area of a triangle ABC, where , B = 45⁰, C = 60⁰ is :

A tower is situated on horizontal plane. From two points, the line joining three points passes through the base and which are a and b distance from the base. The angle of elevation of the top are α and 90° – α and θ is that angle which two points joining the line makes at the top, the height of tower will be

A person observes the angle of elevation of a building as 30°. The person proceeds towards the building with a speed of After 2 hours, he observes the angle of elevation as 45°. The height of the building (in meter) is

In a ΔABC, if then the value of  is