SOLUTION: Assume that AD is the geometric mean of BD and DC in △ABC Suppose BD = 3 and DC = 6. Write a proportion involving AD that can be used to solve for AD. 3/AD AD= Find AD.

Algebra ->  Formulas -> SOLUTION: Assume that AD is the geometric mean of BD and DC in △ABC Suppose BD = 3 and DC = 6. Write a proportion involving AD that can be used to solve for AD. 3/AD AD= Find AD.       Log On


   

Question 1193592: Assume that AD is the geometric mean of BD and DC in △ABC Suppose BD = 3 and DC = 6.
Write a proportion involving AD that can be used to solve for AD.
3/AD
AD=

Find AD.
AD =

Suppose AD = 3 and DC = 6.
Write a proportion involving BD that can be used to solve for BD.
=
3/6
Find BD.
BD =

Found 2 solutions by parmen, ikleyn:
Answer by parmen(42) About Me  (Show Source):
You can put this solution on YOUR website!
**1. Find AD**
* **Proportion:** 3/AD = AD/6
* **Calculate AD:**
AD = √(3 * 6)
AD = √18
AD = 3√2
**2. Find BD**
* **Proportion:** BD/3 = 3/6
* **Calculate BD:**
BD = (3 * 3) / 6
BD = 1.5

Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.

The problem missed to define that triangle ABC is a right angled triangle.

So, this post is FATALLY INCORRECT.

Where do you find such gibberish ?

And WHY do you post gibberish to this forum ?