Classifying Triangles and Quadrilaterals TEKS 5.5A

Ashley is using the chart shown to classify triangles by type. Ashley is given triangle XYZ to classify. In which column should Ashley classify triangle XYZ?

• Acute

• Equiangular

• Obtuse

• Right

Which shape belongs in Group 1 but NOT in Group 2?

• A) Square

• B) Isosceles triangle

• C) Trapezoid

• D) Scalene triangle

This graphic organizer shows one way to classify triangles. Which type of triangles always belongs in the shaded section of the organizer?

• Scalene triangles

• Right triangles

• Isosceles triangles

• Equilateral triangles

In the Venn diagram shown, Set A contains shapes with one given characteristic and Set B contains shapes with another characteristic. Which shape most likely belongs in the intersection of Set A and Set B?

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Which shape is NOT sorted correctly in the graphic organizer?

• Circle

• Pentagon

• Quadrilateral

• Triangle

The graphic organizer shown can be used to classify triangles. Which triangle can be classified as scalene?

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This Venn diagram shows the relationship between some types of triangles. Which triangle belongs in the intersection of 'Acute triangles' and 'Isosceles triangles'?

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Quadrilaterals can be classified using the graphic organizer shown. Which term best classifies the shapes that belong in the shaded section of the organizer?

• A) Parallelogram

• B) Polygon

• C) Pentagon

• D) None of these

This Venn diagram is being used to classify two types of quadrilaterals. Which type of figure will always belong in the shaded section of this Venn diagram?

• Rectangle

• Rhombus

• Square

• Trapezoid

An equilateral triangle has​ ​ (a)   equal sides. An isosceles triangle has​ ​ (b)   equal sides. A scalene triangle has​ (c)   equal sides.​

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