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Angle 2 = 140

Angle 3 = 40

Angle 4 = 140

EXPLANATION:

So all of these angles are going to add up to 360 degrees. The angle on the opposite side is going to be equal

angle 2 = angle 4

angle 3 = angle 1

40+40= 80

360-80= 280

280/2= 140

the answer for this question is : 360°

step-by-step explanation:

we have been given a triangle   we need to tell which one of these is a triangle below to map onto itself.

360° rotation is the complete rotation which eventually leads to the same figure which is given.

the correct will be, that is 360° that will cause the triangle below to map onto itself.