Which equations can be used to determine the area of the irregular figure? check all that apply

a. a= 1/2(3)(2)+2(3)
b. a= 1/2(3)(4)+1/2(2)(3)
c. a= 1/2(2)(3)(4)
d. a= 2(3)(4)
e. a= 1/2(3)(4)+2(3)
f. a= 3(4)+2(3)