In a ΔABC, D is the midpoint of side AC such that BD=12AC. Show that ∠ABC is a right angle.

In a ΔABC, D is the midpoint of side AC such that BD=12AC. Show that

1.	In a ΔABC, D is the midpoint of side AC such that BD=12AC. Show that ∠ABC is a right angle.
Answer» In a $Δ A B C,$ $D$ is the midpoint of side $A C$ such that $B D = \frac{1}{2} A C .$ Show that $∠ A B C$ is a right angle.