Which of the following types of transformations is NOT an example of an isometry?
2 answers:
Answer: Dilation
Step-by-step explanation:
Since, in isometry the shape and size does not change after transformation.
In a reflection, rotation and translation the shape and size of a figure is preserved therefore they are isometry while in dilation the size of the figure changes by a scale factor.
( However we get the similar figures after dilation but they are not congruent.)
Therefore, we can not consider dilation an isometry.
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The coordinates of the image of point B after the triangle is rotated 270° about the origin is (4, 2)
<h3>How to determine the image of point B?</h3>The complete question is added as an attachment
From the attached image, we have the following coordinate
B = (-2, 4)
When the triangle is rotated by 270 degrees, the rule of rotation is:
(x, y) ⇒ (y, -x)
For point B, we have:
B' = (4, 2)
Hence, the coordinates of the image of point B after the triangle is rotated 270° about the origin is (4, 2)
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