Question
ABC is a right angled triangle . AD is bisector of angle BAC. Angle DAC = 20 degree . X = CD.
Answers
Anonymous
good luck if want the length of CD since we have no information on any of the side lengths.
However, we know from the angle bi sector theorem that BD/CD = AB/AC = cos 40
However, we know from the angle bi sector theorem that BD/CD = AB/AC = cos 40