Chapter 14.4, Problem 15WE

To determine

To find: Mapping of both the specified triangle $\Delta (1)$ to $\Delta (2)$ .

Answer to Problem 15WE

  $\Delta (1)\to \Delta (2)$ about ${90}^{°}$ clockwise.

Explanation of Solution

Given information :

Different type of specified triangle shown.

Concept used:

A rotation is a transformation suggested by rotating a paddle wheel. When wheel stops, new position of a paddle referred as the image of initial position.

As per the given problem,

Different type of specified triangle shown.

  

  $\Delta (1)$ is rotated ${90}^{°}$ clockwise to get $\Delta (2)$ .

Hence,

  $\Delta (1)\to \Delta (2)$ about ${90}^{°}$ clockwise.