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# Triangles Questions - All Grades

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The Euler Line passes through which three points for all triangles?
1. Orthocenter, incenter, and centroid
2. Orthocenter, centroid, and circumcenter
3. Centroid, incenter, and circumcenter
4. Orthocenter, circumcenter, and incenter
Grade 5 Triangles CCSS: 5.G.B.4
A(n)                      has exactly two sides of equal length.
1. scalene triangle
2. equilateral triangle
3. isosceles triangle
Grade 5 Triangles CCSS: 5.G.B.4
A(n)                      has all sides of equal length.
1. equilateral triangle
2. isosceles triangle
3. scalene triangle
The point of concurrency of a triangle's three medians.
1. Midsegment of a triangle
2. Incenter
3. Centroid
4. Orthocenter
Grade 5 Triangles CCSS: 5.G.B.4
Triangles that have equal side lengths and equal measurements are called                     .
1. Similar Triangles
2. Regular Polygons
3. Tangent
4. Equilateral Triangle
5. Isosceles Triangle
Grade 8 Triangles CCSS: 8.G.A.5
The exterior angle of a triangle is equal to
1. the value of its adjacent angle
2. the sum of its opposite interior angles
3. the product of its opposite interior angles
4. the difference between its opposite interior angles