Question

How to rotate 90 degree in clockwise moment ?

Answer 1

Âηswεr

$\dashrightarrow$ To rotate the figure 90 degrees clockwise about a point, every point(x,y) will rotate to (y, -x). Let's understand the rotation of 90 degrees clockwise about a point visually.

• The rule for a rotation by 90° about the origin is (x,y)→(−y,x).

Answer 2

⚽ 90° clockwise rotation :-

• ➢ To rotate triangle ABC about the origin 90° clockwise we would follow the rule (x,y) → (y,-x), where the y-value of the original point becomes the new x-value and the x-value of the original point becomes the new y-value with the opposite sign.

Let’s apply the rule to the vertices to create the new triangle A’B’C’ :-

$\begin{gathered}\\ \large\implies\sf{ A (-4, 7) \: becomes \: A’ (7, 4) } \\ \end{gathered}$

$\begin{gathered}\\ \large\implies\sf{ B (-6, 1) \: becomes \: B’ (1, 6) } \\ \end{gathered}$

$\begin{gathered}\\ \large\implies\sf{ C (-2, 1) \: becomes \: C’ (1, 2) } \\ \end{gathered}$