Solving an Equation for Variable h: Step-by-Step Formula Derivation

① This example demonstrates how to algebraically rearrange an equation containing the variable h into an explicit formula for h, using GeoGebra text objects to display each transformation step. ② Core mathematical concepts include equation solving, algebraic operations (addition, subtraction, multiplication, division), handling exponents and fractions, and the presence of trigonometric functions (sine) within the equation, along with geometric contexts like secant lines and quadrilaterals. ③ Construction highlights: Based on the summary, the construction uses three text objects (text1, text2, text3) to sequentially show the algebraic steps, likely combined with the algebra view or input bar; no complex geometric drawing is involved, focusing on symbolic manipulation. ④ This is suitable for middle school to high school students learning equation solving and formula derivation, and for teachers demonstrating rigorous algebraic transformations in class, reinforcing the concept of isolating variables and equivalent operations.