7th Grade Dilation - Right Triangle

This example demonstrates the transformation of a right triangle under dilation. Key math concepts include congruence, trigonometric functions, area calculation, and definite integral. Construction highlights the use of GeoGebra commands such as Intersect, Polygon, and Dilate, with objects like A, B, C, D, poly1, d, b, c, a, B', C', D', poly1', d', b', c'. Suitable for 7th-grade students to learn geometric transformations.