A Student Stands a Distance from a Building and Measures $18.8^{\circ}$

Short Answer

A student stands a distance from a building and measures the angle to the top of the building to be
$18.8^{\circ}$ . The student then walks $24.0 \mathrm{ft}$ . directly towards the building and measures the angle to be $20.2^{\circ}$ .
(a) What is the height of the building?
(b) How close was the student to the building for the second measurement?