Surveyors use trigonmetry to find the exact height, length, and/or width of man-made and/or natural objects without having to measure it all manually. I think, to get the angle, they use a special gun thing that they point at the end of the object, which works it all out, then they just have to measure the distance they are from the object. After that its up to their trigonometry skills, and if they're good, then they should find the almost exact length, height, and/or width.
There are so many jobs that use trigonometry -> an architect, Crime Scene Investigators, any job dealing with outer space (astronomers, physicist, astronauts, the men that guide the astronauts, etc), carpenter, machinist, engineering (mechanical, computer, chemical, civil, aeronautical, industrial, etc.), any job involving navigation (pilots -- air and sea), computer game creators. The list could go on and on, but I think you get the idea.
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how can trigonometry use in metallurgy
One example of an astronomer's use of trigonometry is determining the distance to a star by triangulation.
Mechanics use trigonometry to find angles mostly used in body or chassis work.
The first recorded use of trigonometry came from the Hellenistic mathematician Hipparchus
No. I have worked as a Graphic Designer for over 20 years both in Europe an the USA and have never had to use trigonometry.