In the triangle below x= ? cm. Round to the nearest tenth

9514 1404 393

  y ≈ 10.6 cm

Step-by-step explanation:

The cosine function relates the adjacent side to the hypotenuse in a right triangle. The side adjacent to the 20° angle is 10 cm.

  cos(20°) = (10 cm)/y

  y = (10 cm)/cos(20°)

  y ≈ 10.6 cm

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Additional comment

The value of x is ...

  x = (10 cm)tan(20°) ≈ 3.6 cm

ou would have 12 of each

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have