Question

Please help me with this question!

Answer 1

`\boxed{12.2}`

Step-by-step explanation:

cos θ =
`(adjacent)/(hypotenuse)`

The hypotenuse of the triangle is x.

cos (35) =
`(10)/(x)`

x =
`(10)/(cos(35))`

x = 12.20774588...

x ≈ 12.2

Answer 2

Answer: C) 12.2

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Step-by-step explanation:

We have a known adjacent side (10) and an unknown hypotenuse (x). The cosine rule ties the two sides together.

cos(angle) = adjacent/hypotenuse

cos(35) = 10/x

x*cos(35) = 10

x = 10/cos(35)

x = 12.2077458876146 approximately

x = 12.2

Make sure your calculator is in degree mode.