How is trigonometry useful?

Answer:
Trigonometry is useful in buliding, amongst other professions and industries. Trigonometry is a branch of mathematics that deals with triangles, specifically right-angled triangles. It can be used to measure the angles of a triangle as well as all three sides, as long as two measurements are given.
First answer by Has a Rubber Soul. Last edit by Has a Rubber Soul. Contributor trust: 1 [recommend contributor recommended]. Question popularity: 0 [recommend question].