# What Is the Name Given to a Triangle with Two Sides the Same Length and Two Angles of Equal Size?

## Answer

An isosceles triangle is one with two equal sides and angles. Mathematicians have used this idea to develop the isosceles theory that calculates the third angle.
Q&A Related to "What Is the Name Given to a Triangle with Two..."
 two and only two of the three must be equal in length and the third must be shorter than the total of the first two. eg 5/5/9 will make a triangle but 5/5/10 will not. http://wiki.answers.com/Q/What_must_be_true_of_the...
 An isoceles triangle has two angles that are the same length with the third being different. It can be a right angle or another angle. or it's also called a Right Isosceles triangle http://wiki.answers.com/Q/It_states_the_following_...
 You have a proper right triangle with sides of {1 1 √2 } ■. http://wiki.answers.com/Q/What_happens_if_a_triang...
 If any two angles are given then the third angle can be determined by the fact that the sum of all three is 180 degrees. So, one side of the triangle, say x, and all three angles http://wiki.answers.com/Q/What_is_the_two_sides_of...
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The three types are Equilateral: all sides are the same length, angles are 60 degrees; Isosceles: Two sides are equal length, two angles are equal; Scalene, no ...
An isosceles triangle means that the triangle has two sides that are exactly equal in length. An isosceles triangle also has two angles that are the same measurement ...
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