Special Lines In Triangles

Choose the best answer for each question.

General Questions
 A(n)________is a line that connects an angle of a triangle with the midpoint of the side from it.
 1 Altitudebisectormedianmidsegment

 A(n) __________ is a line that goes from an angle of a triangle to the side opposite that angle and makes a right angle. In an obtuse triangle this line may be outside the triangle itself.
 2 altitudebisectormidsegmentmedian

 A line that bisects a side of a triangle and forms a right angle is called ________.
 3 altitudemidsegmentmedianperpendicular bisector

 A line that joins the midpoints of two sides of a triangle is called _______.
 4 altitudebisectormidsegmentmedian

 An orthocenter is the point of concurrence for _____.
 5 altitudesmedianbisectormidsegments

 A point of concurrence that is equidistant from each vertex is called _______.
 6 Orthocentercentroidmiddlecircumcenter

 An equal triangle has a midsegment with a length of 10cm. What is the length of each side?
 7 5cm15cm20cm30cm

 What is the length of a midsegment of a right triangle that is parallel to the hypotenuse if the legs of the triangle are 6 and 8?
 8 34510

 What is the length of a side parallel to a midsegment of length x?
 9 Xx/23x2x

S Bay

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