Question

Giúp em với ạ 

Answer 1

9:

AM/MC=BA/BC

=>BA/BC=16/3:32/3=1/2

AC=AM+MC=48/3=16

=>BA/1=BC/2=k

=>BA=k; BC=2k

BA^2+BC^2=16^2

=>5k^2=256

=>k^2=256/5

=>k=16căn 5/5

=>BA=16căn 5/5; BC=32căn 5/5

S ABCD=BA*BC=512/5cm²