解析 The image under a dilation with a scale factor of -1 is congruent to the pre-image and is rotated 180^(° ).结果一 题目 How can a dilation produce an image in which the pre-image and the image are two different congruent figures? 答案 The image under a dilation with a scale...
Scale factor is often described using the variable k. The scale factor is typically greater than 0, however, can be negative but results in a new figure that is a rotation about the point of dilation but with the same dilation of the absolute value of that scale factor....
Scale factor is often described using the variable k. The scale factor is typically greater than 0, however, can be negative but results in a new figure that is a rotation about the point of dilation but with the same dilation of the absolute value of that scale factor....
Dilation with scale factor > 1 We will first look at enlargements which are dilations with scale factors greater than 1 Example: Enlarge triangle PQR with O as the center of dilation and a scale factor of 2. Solution: Step 1:Measure OP. ...
ABC was dilated through the origin with a scale factor ofk. After the dilation, ∆ABC was congruent to its image∆A′B′C′. What do these results show about the value ofk?A:0<k<1B:k>1C:k=1D:k<0 相关知识点: 试题来源: 解析 C None ...
|k|<1 Lastly, if the value of the scaling factor is exactly 1, we say that the scaled shape and the original shape arecongruent: k=1 Center of Dilation An important concept in working with dilation in geometry is the reference at which we compare the sizes of shapes. Thecenter of dila...
The Scale Factor Scale factor is a number by which the size of any geometrical figure or shape can be changed with respect to its original size. It is theratioof the sizes of the original figure with the dilated figure. The scale factor can be denoted by r or k. ...
百度试题 结果1 题目A′ is the image ofA under a dilation with centerP. Find the scale factor of this dilation ifPA=4 andAA′=20. 相关知识点: 试题来源: 解析 6 6 反馈 收藏
结果1 题目【题目】ExampleDilate the figure by a scale factor of 3 with the center ofdilation at(1, 2)FIRST, determine where your centerof dilation is8A(2,6)SECOND, determine how to get toeach original coordinate individuallyfrom your scale factor (this counts asONE scale factor)C(2,3)...
Example 1 The picture below shows a dilation with a scale factor of 2. This means that the image, A', is twice as large as the pre-image A. Like other transformations, prime notation is used to distinguish the image fromthe pre-image. The image always has a prime after the letter su...