Answer:
66 cm^2
Step-by-step explanation:
Quadrilateral ABCD is formed by 2 triangles ABC and ACD which has the same AC = 22 cm
Area of ABC: (22 x 3)/2 = 66/2 = 33
Area of ACD: (22 x 3)/2 = 66/2 = 33
Area of ABCB = ABC + ACD = 33 + 33 = 66
