Triangle Geometry

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Can you name the triangle geometry terms?

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DefinitionTerm
A segment intersecting the vertex of a side of a triangle and the midpoint of the side opposite it
The point at which all perpendicular bisectors intersect
The point at which all altitudes intersect
A triangle in which all sides and angles are congruent
A triangle that is either obtuse or acute
A trinagle containing a right angle
S = r x s, were r is the radius and s is the semiperimeter
The side opposite the right angle of a right triangle
The circle that touches all three sides of the triangle and is located completely insdie the triangle
A line intersecting a side's midpoint and perpendicular to that side
A triangle containing a single angle with a measure of >90 degrees
Any of the three points formed by the intersection of any two sides
A segment intersecting the vertex of a side and perpendicular to the opposite side
Method used to conclude congruence between triangles when given two congruent sides and a congruent included angle
The circle formed by the three midpoints of the sides of a trinagle and the three altitudes' feet
DefinitionTerm
The branch of mathematics that focuses mainly on triangles
The ratio of the length of the side opposite to an angle to the length of the hypotenuse of a triangle
A triangle in which all angle measures are less than 90 degrees
The line through the orthocenter, circumcenter, and centroid
The ratio of the length side adjacent to an angle to the length of the hypotenuse of a triangle
The point at which all medians intersect
A Squared + B Squared = C Squared
A triangle in which two sides and two angles are congruent
The reflection of a median at the angle bisector that passes through the same vertex
Number of sides and internal angles of a triangle
The ratio of the length of the side opposite an angle to the length of the side adjacent to the same angle
The center of the incricle
A triangle in which no sides or angles are congruent
The sum of the measures of the angles of a triangle

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Created Dec 3, 2009ReportNominate
Tags:definition, geometry, term, triangle