Question

pls tell the ans no spams❌❌​

Answer 1

Answer:

by cpct DE=BC and DE=1\2BC

Answer 2

Answer:

in ∆ade and∆abc

ad/ab=ae/ac

since the ratios of the corresponding sider is equal, hence it is a similar triangle

now , acc. to bpt if the ratio of the corresponding sides is equal then the line drawn from the two sides is parallel to the third side. therefore, bc||de

and if bc||de then

acc. to mpt de=1/2bc