Triangle Quiz

1. What is the third angle for the triangle where angle1=45° and angle2=45°?

45° 60° 90°

2.If a triangle has an angle of 90°, what is it called ?

Acute Angle Obtuse Angle Right Angle

3.Which of the following triangles are always similar?

equilateral triangle isoceles triangle right triangle

4.What is the name of the segment that joins the midpoints of the sides of a triangle?

median midsegment vertex

5.What is the name of the segment drawn from the vertex of a triangle, perpendicular to the opposite side?

altitude median midsegment

6.What is the point of concurrency of the medians?

centroid incenter orthrocenter

7.What is it called when three or more lines intersect at the same point?

equilateral conspicuous concurrent

8.A midsegment's length is _____ that of its parallel side.

Two-third one-half one-third

9.What is the point of concurrency of the altitudes?

centroid orthocenter circumcenter

10.If the diameter of a circle is 4", what is its radius?

1 3 2