Answer :
Answer: choice B 12 cm^2
A = (1/2)*b*h
A = 0.5*b*h <---- 1/2 is the same as 0.5
A = 0.5*4*6 <---- replace b with 4; h with 6
A = 2*6
A = 12
Alternatively, you can multiply the base and height to get 24, then cut that in half to get 12.
Answer: choice B 12 cm^2
A = (1/2)*b*h
A = 0.5*b*h <---- 1/2 is the same as 0.5
A = 0.5*4*6 <---- replace b with 4; h with 6
A = 2*6
A = 12
Alternatively, you can multiply the base and height to get 24, then cut that in half to get 12.