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Stolb23 [73]
3 years ago
8

Please help !! Need answers for 1-4 !! For brainlest answer and thanks:))

Mathematics
1 answer:
Sergio039 [100]3 years ago
4 0
Don't you just have to add and subtract for 4
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Find the cosine ratio of angle ?. hint: use the slash symbol ( / ) to represent the fraction bar, and enter the fraction with no
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We are given that the angle a is the right angle. So let us work from this.

ab = 12 (the vertical side of the triangle)

bc = 13 (which if drawn can be clearly observed to be the hypotenuse) = the side opposite to angle a

ca = 5 (the horizontal side of the triangle)

 

Since we are to find for the cosine ratio of angle c or angle θ, therefore:

cos θ = adjacent side / hypotenuse

cos θ = ca / bc

cos θ = 5 / 13

 

Check out the attached image below for the illustration of the triangle.

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Answer:

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