Tractor (semicircle) square is a square, a rectangle, rectangle, parallelogram. Diamond trapezoid. Rectangle, to create a rectangle angle. Rectangular equilateral triangle isosceles triangle scalene triangle., quilting acute triangle right triangle,,, Obtuse triangle. The components of the triangle, the size of the interior angle, creating the triangle, circle, the components of the circle, creating a circle. The invention of patterns by using geometry parallel parallel lines and using the symbol / / show parallel, creating a parallel is rectangular. Sphere, cylinder, cone, a prism.
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