In Δ ABC, D is a point on BC such that AB= AD = BD =DC. Show that : ∠ ADC : ∠ C = 4: 1.

In Δ ABC, D is a point on BC such that AB= AD = BD =DC. Show that : �

1.	In Δ ABC, D is a point on BC such that AB= AD = BD =DC. Show that : ∠ ADC : ∠ C = 4: 1.
Answer» In $Δ$ ABC, D is a point on BC such that AB= AD = BD =DC. Show that : $∠$ ADC : $∠$ C = 4: 1.