Angle BAD = Angle DAC ( AD is bisector of angle A
AE = ED
Angle DAE = Angle ADE ( angles opposite to equal sides)
Angle BAD = angle ADE
AB is parallel to DE ( because of alternate angles BAD and ADE)
Hence Triangles CDE and CBA are similar
CE/AC = CD/CB
1-CE/AC= 1-CD/CB
(AC-CE)/AC= (CB-CD)/CB
AE/AC = BD/BC
Secure Information
Content will be erased after question is completed.
Enter the email address associated with your account, and we will email you a link to reset your password.
Forgot your password?
Sign Up