So basically you are going to use trigonometry. You are going to use sin, cosine, or tangent. In this case, you are going to use tangent. Instead of putting it in your calculator, put this on paper: tan(79)=9.2/x because x is the side opposite to the angle and 9.2 is the close side, which is how high Lindsey is up from the ground. Then you get tan(79) which is 5.144554016. You switch the x and the 5.144554016 and then you just divide 9.2 by 5.144554016. Then you get 1.788298844. Round to nearest tenth of a meter and you get 1.79 meters as your answer. My calculator IS in degrees, not radians.