Q:

How do you rotate a triangle 90 degrees clockwise?

A:

Quick Answer

To rotate a triangle 90 degrees clockwise, take each of the triangle's three coordinates (x, y), flip them and make the x negative (y, -x). You need graph paper, a separate sheet of paper and two different-colored pens or pencils.

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Full Answer

  1. Write down the triangle's original coordinates

    Plot the original coordinates on a graph. Connect the points to form a triangle. Label the points of the triangle as A, B and C. On a separate sheet of paper, write down the x and y coordinates of points A, B and C as (x, y).

  2. Flip the coordinates, and make the x negative

    On your list of coordinates, write down the flipped coordinates of points A, B and C as (y, x). Make each x coordinate of the flipped coordinates negative by placing the negative symbol next to it.

  3. Plot the flipped coordinates

    Use a different-colored pen or pencil than the one that was used to plot the original triangle, and plot the flipped version of point A. Label the point as A. Plot the flipped version of point B. Label the point as B. Plot the flipped version of point C. Label the point as C. Connect the points to form a triangle.

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