How to calculate the arc length, chord length and chord height of arc LED display_led cylindrical screen|led arc screen|led spherical screen
The calculation idea of u200bu200bthe arc LED display: The formula calculates the angle of the chord height and the chord length to form a right triangle 1. Set the chord height to b, the chord length to 2a, measure 2au003d200bu003d60 to calculate the arc length and radius; 2. The chord height and chord length The side length of the triangle is au003d100bu003d60 chord height and chord length calculation method; 3. The side length of the chord height and chord is au003d100bu003d60 calculated according to the Pythagorean theorem. +b square u003d c square, namely: cu003d116.62; 4. According to the trigonometric formula sin＜Au003da/c (u0026ang;A is the diagonal of a), namely: sin＜Au003d0.86 and then use the arc sine of the calculator Function calculation
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