To find the angle θ in the right triangle, we can use the inverse cosine function, also known as arccosine.
Since cos θ = 0.8192, we can use a table of trigonometric values or a calculator to find the angle whose cosine is 0.8192.
From the table, we find that the angle whose cosine is 0.8192 is approximately 36 degrees (to the nearest degree).
Therefore, θ ≈ 36 degrees.
However, the given values of A = 45 and H = ? are not sufficient to find the length of the hypotenuse. We need either the length of the angle or another side length to determine the length of the hypotenuse (H).
Use a table of trigonometric values to find the angle θ in the right triangle in the following problem. Round to the nearest degree, if necessary.
cos θ = 0.8192 A = 45 H = ?
1 answer