![The angle of elevation of the top of a tower from a point A (on the ground) is 30^∘. On walking 50 m towards the tower, the angle of elevation is found The angle of elevation of the top of a tower from a point A (on the ground) is 30^∘. On walking 50 m towards the tower, the angle of elevation is found](https://haygot.s3.amazonaws.com/questions/1785170_dfa6cec64a3c48be95e01b621d0f66fd.png)
The angle of elevation of the top of a tower from a point A (on the ground) is 30^∘. On walking 50 m towards the tower, the angle of elevation is found
![Illustration to calculate angle between two lines using points... | Download High-Resolution Scientific Diagram Illustration to calculate angle between two lines using points... | Download High-Resolution Scientific Diagram](https://www.researchgate.net/publication/275605753/figure/fig4/AS:359983293190147@1462838113790/Illustration-to-calculate-angle-between-two-lines-using-points-coordinates.png)
Illustration to calculate angle between two lines using points... | Download High-Resolution Scientific Diagram
All I have is 3 points in a coordinate system. How can I calculate the sine of an angle, formed by them? - Quora
![What is the distance between the top points of two intersecting circles when the tangents from each circle meet at a point at a given angle? | ResearchGate What is the distance between the top points of two intersecting circles when the tangents from each circle meet at a point at a given angle? | ResearchGate](https://www.researchgate.net/profile/Anand-Sekar-2/post/What_is_the_distance_between_the_top_points_of_two_intersecting_circles_when_the_tangents_from_each_circle_meet_at_a_point_at_a_given_angle/attachment/59d6200d6cda7b8083a194e6/AS%3A273624651501582%401442248608458/image/geometry.jpg)