The area of AABC is 48 cm². DE is a midsegment of AABC. What is the area of AADE?

12 cm² is the answer but i don’t know how to show my work

The area of AABC is 48 cm DE is a midsegment of AABC What is the area of AADE 12 cm is the answer but i dont know how to show my work class=