Question

after rotating by 120 degree about a point a figure looks exactly the same as its original position. its order of rotation is---

Answer 1

Dear Student,

$$\begin{gathered} \mathrm{After}\mathrm{rotating}120°\mathrm{about}\mathrm{a}\mathrm{point}\mathrm{a}\mathrm{figure}\mathrm{looks}\mathrm{exactky}\mathrm{the}\mathrm{same}. \\ \mathrm{So},\mathrm{it}\mathrm{will}\mathrm{also}\mathrm{look}\mathrm{same}\mathrm{after}\mathrm{rotationg}240°\mathrm{and}360°. \\ \mathrm{Hence},\mathrm{its}\mathrm{order}\mathrm{of}\mathrm{rotation}\mathrm{is}3. \end{gathered}$$

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