An example from mathematics on a green board - supplementing the sizes of angles using the knowledge of congruent and alternating angles

---

Size: 5000px × 5000px
Location: Česko
Photo credit: © Radicik / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: activity, angle, angles, board, chalk, challenge, concept, congruent, demonstration, design, diagram, education, exercise, formula, geometric, geometry, graph, graphic, green, illustration, learn, line, math, mathematics, maths, object, presentation, properties, question, replenishment, school, science, silhouette, study, symbol, teaching, vector, vectors