Question

Let AABC be a triangle with AB-7, BC-8 and AC-9. Polnt D is on side AC such that m/CBD=45°. What is length of BD?​

Answer 1

Answer:

7 AB^2

Step-by-step explanation:

△ABC

In △AEB

By Pythagoras Theorem,

From 1) and 2)

Since, EB=

2

1

BC=

2

AB

=

6

3AB

and

ED=

6

BC

=

6

AB

∴ AD

2

=

36

AB

2

+AB

2

−

36

9AB

2

∴ 9AD

2

=7AB

2