You are here:
Basic Math/Angles
Advertisement
Question
Find the measure of each angle in the triangle given (9x-4), (4x+1), (3x+7) for the angles.
The key concept you need to remember is that the angles inside a triangle always add up to 180 degrees.
So, (9x-4), (4x+1) and (3x+7) must add up to 180.
i.e., (9x-4)+(4x+1)+(3x+7)=180.
Simplifying this expression and solving for x will lead you to the solution. Once the value of "x" is known, you can substitute it back into (9x-4), (4x+1) and (3x+7) to work out the angles.
Related Articles
Answers by Expert:
Josh
Expertise
When I work through problems, I like to emphasize concepts which I believe are worth noting. I will try to answer questions in the following areas, but not at the advanced level. Algebra. Sequences & Series. Trigonometry. Functions & Graphs. Coordinate Geometry. Quadratic Polynomials. Exponential & Logarithms. Basic Calculus. Probability, Permutation and Combination. Mathematical Induction. Complex numbers. Physics problems.
Experience
I have worked as a teaching assistant in college. My hope is that more people will share knowledge without boundary, give help without seeking recognition or monetary rewards.
Education/Credentials
Bachelor degree in Engineering Science
©2012 About.com, a part of The New York Times Company. All rights reserved.