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QUESTION IMAGE

in the figure shown, which composition of rigid transformations will ma…

Question

in the figure shown, which composition of rigid transformations will map one triangle onto the other? a. a glide reflection b. a reflection followed by a translation c. two translations d. a rotation followed by a translation

Explanation:

Brief Explanations
  1. 观察两个三角形的对应边和角的位置关系:两个三角形是镜像对称的,首先通过反射(镜像)可以让对应边和角的方向对齐,之后再通过平移可以将其中一个三角形移动到另一个的位置。
  2. 分析其他选项:A选项滑动反射是反射加沿反射轴的平移,这里不需要沿轴平移;C选项两次平移无法改变图形的朝向,不能让镜像图形重合;D选项旋转加平移也无法将镜像的三角形重合。

Answer:

B. a reflection followed by a translation