5. In right triangle PQR, where Q is the right angle and P and R are acute angles, the equation sin(36°)
What is the measure of 0? (2 points)
=
cos(0)?



Answer :

Certainly! Let's solve the given problem step-by-step.

We know from trigonometric identities that the sine of an angle is equal to the cosine of its complementary angle. Specifically:

[tex]\[ \sin(36^\circ) = \cos(\theta) \][/tex]

The equation above tells us that the angle [tex]\(\theta\)[/tex] is complementary to 36 degrees. In trigonometry, two angles are complementary if their sum is 90 degrees.

Therefore, we can write the relationship between the angles as:

[tex]\[ \theta = 90^\circ - 36^\circ \][/tex]

Now let's calculate:

[tex]\[ \theta = 90^\circ - 36^\circ \][/tex]
[tex]\[ \theta = 54^\circ \][/tex]

So, the measure of [tex]\(\theta\)[/tex] is 54 degrees.

To summarize, [tex]\(\theta = 54^\circ\)[/tex].