Study of triangles and trigonometric functions including sine, cosine, and tangent.
Want to know how tall a tree is without climbing it? Trigonometry is the answer! By measuring an angle from a certain distance, you can calculate heights using tangent.
This is how surveyors, architects, and even astronauts measure things they can't touch!
To find the height of a building, stand 30 meters away and measure an angle of elevation of 45°. Using tangent, the building is also 30 meters tall.
A drone flying at a known height can determine its distance from a landing pad by measuring the angle of depression.