Answer:
See Explanation
Step-by-step explanation:
Required
Which represents a counterclockwise 90 degrees rotation
No enough details to answer this question. However, I will give a general explanation on how questions like this can be solved
Assume one of the vertex of the triangle is (x,y)
When (x,y) is rotated counterclockwise by 90 degrees, the new point is (-y,x)
Take for instance:
A(2,3)
The new point after rotation will be (-3,2)
