What is the angle θ in the triangle below? (hint: use an inverse trigonometric function.) a. 45.3° b. 22.0° c. 68.0° d. 0.38°

Answer

The correct answer is B

Explanation

The side length opposite to the angle has length units.

The length of the hypotenuse is units.

We use the trigonometric ratio that involves the length of the opposite side and the hypotenuse, which is

This is the same as,

We take the sine inverse to obtain,

This evaluates to

Therefore the value of the angle is to the nearest tenth

wavelength divides in half and speed stays the same.