Math Teacher Explaining Trigonometry - Educational Illustration #3346408 (License: Personal Use)

The image features a professional-looking female instructor with shoulder-length auburn hair and glasses, dressed in a gray blazer over a ruffled white blouse. She points with chalk to a labeled right triangle on a black chalkboard, illustrating angles α, β, sides a, b, c, and formulas including c = √(a² + b²), sin α, and cos α. A small eraser rests on the wooden lectern below.

This image is commonly used on educational websites, e-learning platforms, tutoring service pages, or blog posts about STEM education, math pedagogy, or classroom diversity. It supports user intent related to finding teaching resources, visual aids for trigonometry, or inspiration for inclusive science education.