Adjustable angle bars, (measures 25 cm retracted and 50 cm fully extended). The bars snapped together to form any polygon shapes. Can be used to investigate properties of triangles, quadrilaterals, angles in parallel lines, alternate angles. Can also be used to proof trigonometric laws (e.g. Sine, Cosine and Tangent laws). For angle measures, just snap the included protractor. Set includes 16 bars and 2 protractors.
Tags: Hand2Mind, anglegs, anglegs plus, flexible anglegs, angles, trigonometry, trigo, Pythagoras, tangent, sine, cosine, angular, equilateral, quadrilateral, polygon, hexagon, triangle, rectangle, square