Find out about scalene, equilateral, isosceles and right-angled triangles ... Properties of 3D shapes Learn about faces, edges and vertices. What are 3D shapes? Learn about 3D shapes and their ...
First, here's an isosceles triangle ... Now we have an equilateral triangle. Three sides of equal length andall the angles are 60 degrees. This is a scalene triangle. All the sides are different ...
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