Question

I need help! Find the measure of the indicated angle to the nearest degree.

Answer 1

Seeing as this is a right triangle, we would solve for the unknown angle using a trigonometric function.

Remember! SOH-CAH-TOA

Looking from the unknown angle, we are given the adjacent side and the hypotenuse. Therefore, we should use the cosine function.

cos(?) = 17 / 19

---To find the unknown angle measure, you will need to use the inverse cosine function. This function is generally found by using the "2nd" button on your calculator and then pressing the cosine button. It should look like one of the following options: "cos^-1" or "arccos".

Make sure your calculator is in degrees, not radians!

cos^(-1) [17/`9]

26.52

---Round to the nearest degree per the instructions

Answer: 27 degrees

Hope this helps!