Name _____________________________ Date ___________________
Coordinate Geometry
Find the area.

 1 Find the area of the triangle whose vertices are(2, 5), (2, 0), and (-1, 5)
 2 Find the area of the trapezoid whose vertices are(-1, 1), (3, 5), (-1, 5), and (11, 1)
 3 Find the area of the square whose vertices are(-3, 3), (0, -1), (-3, -1), and (0, 3)
 4 Find the area of the parallelogram whose vertices are(0, 5), (0, 2), (3, 5), and (3, 2)
 5 Find the area of the trapezoid whose vertices are(-1, 0), (-1, 4), (3, 4), and (9, 0)
 6 Find the area of the triangle whose vertices are(-1, 0), (-6, 0), and (-6, 6)
 7 Find the area of the square whose vertices are(9, -7), (9, 1), (2, 1), and (2, -7)
 8 Find the area of the trapezoid whose vertices are(-7, 4), (2, 0), (-2, 4), and (-7, 0)
 9 Find the area of the triangle whose vertices are(-2, 5), (-2, 0), and (7, 0)
 10 Find the area of the trapezoid whose vertices are(2, 12), (9, 12), (2, 4), and (5, 4)
 11 Find the area of the triangle whose vertices are(8, -4), (4, 1), and (8, 1)
 12 Find the area of the square whose vertices are(-4, -3), (0, -3), (0, 6), and (-4, 6)
 13 Find the area of the parallelogram whose vertices are(2, -2), (2, 7), (-5, 7), and (-5, -2)
 14 Find the area of the triangle whose vertices are(-5, 9), (-8, 9), and (-5, 4)
 15 Find the area of the trapezoid whose vertices are(6, 0), (3, 0), (6, 7), and (-5, 7)
 16 Find the area of the triangle whose vertices are(6, 0), (6, 9), and (-3, 0)
 17 Find the area of the square whose vertices are(-1, -7), (-1, 0), (-8, 0), and (-8, -7)
 18 Find the area of the trapezoid whose vertices are(-3, -7), (2, -7), (2, 2), and (-7, 2)