Given the information below and that the green line is an angle bisector of the black angle created by the hockey puck, whar are the maesures of angles 1, 2, and 4? A. 120, 60, 30
B. 30, 30, 60
C. 120, 90, 30
D. 30, 45, 90

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  B.  30, 30, 60

Step-by-step explanation:

Angle 1 is the complement of angle 3, so is 90° -60° = 30°.

The angle bisector makes angle 2 equal to angle 1, 30°.

Angle 4 is the complement of angle 2, so is 90° -30° = 60°.

The measures of angles 1, 2, 4 are 30, 30, 60.

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If you're paying attention, you know that the angle bisector makes angles 1 and 2 equal. There is only one answer choice with angles 1 and 2 equal. No math required. Just use the reasonableness test on the answer choices.

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

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