Polygons and Triangles

Choose the BEST answer.

4 sides, 4 vertices, and 4 angles means it is a _______________

• square

• rectangle

• quadrilateral

• polygon

THINK about it.

Which of the following triangles is impossible to draw?

(hint: think of angle measures, 180 degrees in triangle)

• right obtuse triangle

• right scalene triangle

• acute isosceles triangle

• obtuse scalene triangle

Classify this triangle.

• Scalene, acute

• Scalene, obtuse

• Isoceles, obtuse

• Isoceles, right

When all the sides are congruent, the polygon is

• regular

• not regular (irregular)

Congruent means...

• faces of a polyhedron that connect the bases

• they are all different

• they are the same size and shape

• they are parallel lines

Classify the triangle with the following measures.

• isoceles, acute

• scalene, obtuse

• equilateral, acute

• scalene, acute

Tags

CCSS.7.G.A.2

Classify the triangle with the following measures:

sides- 28 mm, 44 mm, 28 mm

angles- 90°, 45°, 45°

• equilateral, right

• isoceles, acute

• isoceles, right

• equilateral, acute

Classify the shape.

• Rectangle, irregular

• Octagon, irregular

• Heptagon, irregular

• Rectangle, regular

Classify the shape.

• Rectangle, irregular

• Quadrilateral, regular

• Quadrilateral, irregular

• Square, irregular

Which of the following is a regular polygon?

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