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the cosine of 50 degrees is 0.64. what is the sine of 40 degrees?

Step-by-step explanation:

sin (90° - ∅) = Cosine ∅

40 = 90 - 50

sin (40°) = sin (90° - 50°) = Cosine 50° = 0.64

sin (40°) = 0.64

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.