### Home > CCG > Chapter Ch8 > Lesson 8.3.2 > Problem 8-110

8-110.

Krista is trying to solve for *x* in the triangle below.

What equation would Krista write?

With the given angle of

, is the adjacent side andis the hypotenuse.

Which trigonometry ratio should you use?Krista does not have a calculator, but she remembered something funny her friend Juanisha told her. Juanisha’s favorite sine ratio is sin

because 5/22 is Juanisha’s birthday! Without a calculator, use Juanisha’s favorite ratio to solve your equation from part (a). Remember the sine of one acute angle in a right triangle equals the cosine of the other acute angle.

Find the measure of the missing angle in the triangle, then use sine ratio.