If BC = x^2 - 18, CD =x + 2, C midpoint of BD, find x.

Geometric formulae, word problems, theorems and proofs, etc.
Mathwiz1
Posts: 1
Joined: Fri Sep 16, 2011 3:03 am
Contact:

If BC = x^2 - 18, CD =x + 2, C midpoint of BD, find x.

Postby Mathwiz1 » Fri Sep 16, 2011 3:12 am

viewtopic.php?f=11&t=1497

If BC = x^2 - 18, CD =x + 2, C midpoint of BD, find x.

It means that BC is congruent(same length) as CD. I also need help with this problem

User avatar
little_dragon
Posts: 194
Joined: Mon Dec 08, 2008 5:18 pm
Contact:

Re: If BC = x^2 - 18, CD =x + 2, C midpoint of BD, find x.

Postby little_dragon » Thu Sep 22, 2011 11:23 am

Mathwiz1 wrote:http://www.purplemath.com/learning/viewtopic.php?f=11&t=1497

If BC = x^2 - 18, CD =x + 2, C midpoint of BD, find x.

It means that BC is congruent(same length) as CD. I also need help with this problem

do like they said in the link: put them = & solve the eqn
:wave:


Return to “Geometry”