If acde were reflected across the line y = x, what would be the coordinates of acde?
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c'(1,5), d'(8,2), e'(7,6)
000
c'(-1,-5), d'(-8, -2), e'(-
c'(-1,5), d'(-8,2), e'(–7,6)
c'(-5,1), d'(-2,8), e'(-6, 7)

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: