Tangent Circles
Not what you're looking for?
Please see the attached file for the fully formatted problems.
Two congruent semicircles lie on the diameter of a third semicircle, each tangent to the other two. A small circle is tangent to all three semicircles. If the area of the shaded region is 45pi, what is the length of the radius of the small circle.
Purchase this Solution
Solution Summary
The radius of a circle tangent to two other circles is found.
Solution Preview
Please see the attached file for the complete solution.
Thanks for using BrainMass.
Let the circles be A B C D
Radius of A is 2r
B and C is r
And ...
Purchase this Solution
Free BrainMass Quizzes
Geometry - Real Life Application Problems
Understanding of how geometry applies to in real-world contexts
Probability Quiz
Some questions on probability
Solving quadratic inequalities
This quiz test you on how well you are familiar with solving quadratic inequalities.
Graphs and Functions
This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.
Exponential Expressions
In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.