What is cos 17pi/4 ?
1 answer:
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Answer:
See below.
Step-by-step explanation:
The coordinates of the original triangle are at
(-5, 3), (-5, 7), and (1, 7).
Since the scale factor is one-half, you are <em>shrinking the triangle.</em>
The coordinates of the dilated triangle will be <em>half-way</em> from those points to (-1, 3).
Thus, they will be at
(-3, 3), (-3,5), and (0,5).
In the image below, the green triangle is the original.
The red triangle is the dilated figure, and the black dashed lines are the dilation rays from (-1, 3).
