Triangle ABC has coordinates A(1,-1), B(0,2), and C(2,1) and it is reflected over the line y = -x to form triangle A'B'C'. What are the coordinates of triangle A'B'C'?

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.