Question 1076207

Can someone help me with this problem please?
Thank you. 
Driving down a straight highway 74 miles per hour, you see a radio tower ahead and to the right. The angle between the road and your line of sight to the tower is 19 degree. Ninety seconds later, the angle between the road and your line of sight to the tower is 31 degree. At that moment, how far is the tower?
<pre>Distance traveled from the {{{matrix(1,2, 19^o-angle-of-elevation, point)}}} to the {{{matrix(1,2, 31^o-angle-of-elevation, point)}}} = {{{matrix(1,8, 74 * (90/"3,600"), or, 74 * (1/40), "=", 37/20, or, 1&17/20, miles))}}} 
Using this distance and its opposite angle ({{{12^o}}}), we see that the distance from the {{{matrix(1,2, 31^o-angle-of-elevation, point)}}} to the top of the tower is 2.896908 miles
Using this length, and the {{{31^o}}} angle, we find that the distance from the {{{matrix(1,2, 31^o-angle-of-elevation, point)}}} to the base of the tower is: {{{highlight_green(matrix(1,2, 2.483135, miles))}}}