right angle geoboard

Author:Laurel Langford

Points A, B, C, D and E can be dragged (moved) to make lines on the geoboards. The two blue lines are always perpendicular and the two red lines are always perpendicular (right angles).

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Right Triangle Inscribed in a Semicircle
Rovnoběžnost rovin
Function art 3D - waiting shed
Isosceles Right Triangle
Perpendicular Lines: Quick Exploration

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Exploring definitions
Triangle Exterior Angle Sum Theorem
KONSTRUKCIJA TROKUTA SKS
เรือ
Area of Triangle

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Square
Prism
Unit Circle
Ellipse
Scalene Triangles