Question

ABC is a right angled triangle. AD is the bisector of angle BAC. Angle DAC=17. AB=22cm. Find the length of CD

Answer 1

since angle BCA is 90 degrees we can therefore say that angle ABC is 90 minus twice angle BAC

applying tangent function to get the length of CD you'll have:
\[\tan 17 = \frac{ CD }{ 18.239 }\]
CD = 5.576cm