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Find the order and the angles of rotational symmetry of an equilatetriangle, with the help of a rough sketch. |
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Answer» we have to check how many times an equilateral triangle fits on to itself during a full rotation of 360 degrees. Please look at the images of the equilateral triangle in the order A,B and C. A is the original image. The images B and C are generated by rotating the original image A. When we look at the below images of equilateral triangle, it fits on to itself 3 times during a full rotation of 360 degrees. Hence, an equilateral triangle has rotational symmetry of order 3. |
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