Answer:
BD ≈ 2.7
Step-by-step explanation:
AD is an angle bisector thus the following ratios are equal
[tex]\frac{AB}{AC}[/tex] = [tex]\frac{BD}{CD}[/tex], that is
[tex]\frac{8.1}{5.9}[/tex] = [tex]\frac{BD}{2}[/tex] ( cross- multiply )
5.9BD = 16.2 ( divide both sides by 5.9 )
BD ≈ 2.7 ( to 1 dec. place )
