Use the Law of Sines to solve the following problem. If ∠C=28 degrees and side c=28 m , then what is the length of side a to the nearest meter?

1 answer

To solve for side \( a \) using the Law of Sines, we'll start with the given information:

  • \( \angle C = 28^\circ \)
  • \( c = 28 , \text{m} \)

The Law of Sines states that:

\[ \frac{a}{\sin A} = \frac{b}{\sin B} = \frac{c}{\sin C} \]

We only have information about \( \angle C \) and side \( c \). To find side \( a \), we also need the measure of \( \angle A \) or \( \angle B \). Without additional information about the other angles or side lengths, we cannot directly find side \( a \).

If we assume that we have another angle (say, \( \angle A \)), we could proceed with the calculations as follows:

  1. Calculate \( \sin C \):

\[ \sin 28^\circ \approx 0.4695 \]

  1. Set up the ratio using the Law of Sines:

\[ \frac{a}{\sin A} = \frac{28}{\sin 28^\circ} \]

  1. From this, we get:

\[ a = \frac{28 \cdot \sin A}{\sin 28^\circ} \]

  1. Substituting the value of \( \sin 28^\circ \):

\[ a = \frac{28 \cdot \sin A}{0.4695} \]

  1. To find \( a \), we'll need the value of \( \sin A \).

If you provide the value for either \( \angle A \) or \( \angle B \), then we can find \( a \). Otherwise, additional details are needed to give a specific numerical answer for side \( a \).

Please provide any missing information, or let me know how you would like to proceed!