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Describing Rotations

Describing Rotations 1.5 - Solution

arrow_back Return to Describing Rotations

Let's first draw JKL\triangle JKL by plotting vertices J(2,6),J(2,6), K(5,2),K(5,2), and L(7,5).L(7,5).

To rotate the figure 9090^\circ counterclockwise about the origin, we can focus on its vertices.

We will begin by rotating vertex J.J. To do so, we will first draw a segment from JJ to the origin. Then, we will draw another segment from the origin to the image of JJ such that both segments are congruent and perpendicular.

Similarly, we will rotate the other vertices to have JKL.\triangle J'K'L'.

By connecting the rotated points, we can finally have the image of JKL.\triangle JKL.