Given right triangle ABC, which of the following statements must be true? Check all that apply.
А
С
A. ZA and 2C are complementary
B. sin C = COS(A-90)
C. sin C = COS(90°-C)
D. sin C = cos(90° - A)

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

source:

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c. histogram

step-by-step explanation: