If a 15 yards and ∠C= 62 degrees, what is the measure of h to the nearest yard? < (1 point) O 13 yards 16 yards O 28 yards 7 yards

1 answer

To find the height \( h \) given one side of a triangle and an angle, we can use the sine function from trigonometry.

Assuming you are working with a right triangle where:

  • \( C \) is the angle opposite the height \( h \),
  • the side measuring 15 yards is the side adjacent to angle \( C \) (i.e., it's the base of the triangle).

The relationship is given by the sine function:

\[ \sin(C) = \frac{\text{opposite}}{\text{hypotenuse}} \]

Here, \( C = 62^\circ \), and \( \text{opposite} = h \), \( \text{adjacent} = 15 \). However, to use the sine function correctly, we actually find \( h \) using the relation of the opposite side to the hypotenuse:

First, we find the length of the hypotenuse using the cosine function:

\[ \cos(62^\circ) = \frac{15}{\text{hypotenuse}} \]

Rearranging gives us:

\[ \text{hypotenuse} = \frac{15}{\cos(62^\circ)} \]

Now, calculate \( \cos(62^\circ) \):

\[ \cos(62^\circ) \approx 0.4695 \]

So:

\[ \text{hypotenuse} \approx \frac{15}{0.4695} \approx 31.95 \text{ yards} \]

Next, we can find \( h \) using:

\[ h = \text{hypotenuse} \times \sin(62^\circ) \]

Calculating \( \sin(62^\circ) \):

\[ \sin(62^\circ) \approx 0.8746 \]

Now, substituting the values to find \( h \):

\[ h \approx 31.95 \times 0.8746 \approx 27.94 \text{ yards} \]

Thus, rounding to the nearest yard, we find:

\[ h \approx 28 \text{ yards} \]

So, the answer is:

28 yards