Question

Find the length of DB.

Answer 1

@shamil98

Answer 2

First find the length of CD from triangle ACD.
Using the pythagorean theorem.
15^2 + b^2 = 17^2
225 + b^2 = 289
b^2 = 64
b = 8
CD = 8

Then find the length of CB via pythagorean theorem as well.

15^2 + b^2 = 25^2
225 + b^2 = 625
b^2 = 400
b = 20
CB = 20

CB - CD = DB
20 - 8 = 12
length of db is 12.

Answer 3

Thank You!