You are here:
- Home
- Science
- Math for Kids
- Geometry
- Geometry
Geometry/Geometry
Advertisement
Question
How would you find the length of the segment using the Segment Addition Postulate to solve for x using HJ= 2x+4, JK= 3x+3 and KH= 22?
If we know the length of HJ and JK, add them up and you get the length of KH.
The lengths or HJ = 2x + 4 and the length of JK is 3x + 3.
When HJ and JK are added together, you get KH, which is 22.
The equation to solve is then 2x+4 + 3x+3 = 22.
Combine terms and you get 5x + 7 = 22.
Subtract off 7 from both sides and you get 5x = 15.
Divide both sides by 5 and you get x = 3.
Related Articles
Scott A Wilson
Expertise
Whatever questions you ask except how to trisect an angle.
Experience
I have been assisting people in Geometry since the 80's.
Education/Credentials
I have an MS at Oregon State and a BS at Oregon State, both with honors.
Awards and Honors
I was the outstanding student in high school in the area of geometry and math in general.
Past/Present Clients
Over 7,500 people, mostly in math, with almost 400 in geometry.
©2012 About.com, a part of The New York Times Company. All rights reserved.