Internal angle sum of triangles

Author:mrsK

- Drag the vertices A, B, C to create different types of triangles. - Use the sliders to create copies of the same triangle and prove that the internal angles always add up to 180 degrees.

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bewijs stelling van Pythagoras
Constructing an Isosceles Triangle with Given Side + Activities
Constructing an Inscribed Equilateral Triangle + Activities
Constructing Equilateral Triangles + Activities
Proving Triangles Congruent (2): One Step Transformations

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Practice
Octagon-Grace
三角函数变换
MODUL 5A_SUGENG SUPRAYOGI_SMK NEGERI 1 BONTANG
кубтық парабола градиенттери

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Linear Regression
Curve Sketching
Arithmetic Operations
Functions
Unit Circle