Rotate triangle P 90° clockwise about the point (2, -1).
1 answer:
Answer:
Step-by-step explanation:
If we are rotating about the point (2,-1) , then we first need to translate the triangle two points to the left so that point P is at location (2,-1). Once we have that we rotate everything 90 degrees clockwise, while maintaining the same distance and angles between each point in the triangle. After doing this we will get the triangle seen in the attached picture below. Which is fully rotated 90 degrees clockwise about the point (2,-1)
You might be interested in
It's not difficult to compute the values of 
and 
directly:
Let's assume
, so that 
.
Now,
There doesn't seem to be anything interesting about this result... But all that's left to do is plug in and .
Let's assume
Now,
There doesn't seem to be anything interesting about this result... But all that's left to do is plug in