[tex]54cm^{2}[/tex]
9×12÷2=54
Base×Height÷2=Answer
Answer:
The answer is 54
Step-by-step explanation: For this you have to do base X length which is 12 x 9 = 108 after that you divide 108 by 2
so you problem should look like this
12 x 9 = 108 / 2 = 54