Question

c) \\( cos 5 ^ { circ } = \frac { 8.75 } { h } \\)\\( h = \\)

Explanation:

Step1: Solve for \( h \)

Given \( \cos5^{\circ}=\frac{8.75}{h} \), we can rewrite it as \( h=\frac{8.75}{\cos5^{\circ}} \).

Step2: Calculate \( \cos5^{\circ} \)

Using a calculator, \( \cos5^{\circ}\approx0.9962 \).

Step3: Compute \( h \)

Substitute \( \cos5^{\circ}\approx0.9962 \) into \( h=\frac{8.75}{\cos5^{\circ}} \), so \( h=\frac{8.75}{0.9962}\approx8.78 \).

Answer:

\( h\approx8.78 \)