What is the area of trapezoid abcd? enter your answer as a decimal or whole number in the box. do not round at any steps.

Determine the measure of bases a and b and height h of the given trapezoid. Given the coordinates of the points, the distance is calculated through the equation,

     d =  sqrt ((x₂ - x₁)² + (y₂ - y₁)²)

Base 1: (-2,2) and (1,-2):
    d= sqrt ((-2 - 1)² + (2 - -2)²) = 5

Base 2: (2,5) and (11, -7)
   d = sqrt ((2 - 11)² + (5 - -7)²) = 15

Height: (-2,2) and (2, 5)
   h = sqrt ((-2 -2)² + (2 - 5)²) = 5

The equation for the area of the trapezoid is,
    A = (1/2)(base1 + base2)h

Substituting the known values,
   A = (1/2)(5 + 15)(5) = 50

ANSWER: 50 square units