Can anyone help me with this math problem?

A toy designer has created a new tow truck. Attached 4.2 inches arm to the truck body at an angle of 32 degrees. It now needs to develop a second arm that hangs from the arm to the first box truck at an angle 90 °. How long arm and hook to touch the truck bed? Round your answer to the tenth, appropriate. A. 5.0 "B 2.2" C. 3.6 "D. 7.9" thanks:)

Grain simple, you will have the 4.2 "of weapons such as the hypotenuse of a triangle with theta = 32 degrees. Using the formula sin theta = opposite / hypotenuse we can get the length (the length of the cons below). therefore solve for the opposition and get: sin * theta = hypotenuse opposite, which is opposite = sin 32 ° * 4.2 "face = 0.53 * 4.2 = 2.226" rounded to the nearest tenth = 2.2 The answer is B. 2.2 inches

Hooked on Phonics: A Teacher’s Child