## Elementary Geometry for College Students (6th Edition)

The area of the lot is $\approx 13,294.9$ ft$^{2}$
1. Use the area formula $A = \frac{1}{2}absin(C)$ $A = (0.5)(180)(150)sin(80)$ $= (0.5)(27000)sin(80)$ $= 13500sin(80)$ by GDC / calculator $= 13294.90...$ ft$^{2}$ $\approx 13,294.9$ ft$^{2}$