Praxis Elem. Ed- Math(5003) Chpt 8 - 2D & 3D Shapes Quiz Questions

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15. The following is true of 2D shapes except 2D shapes have 2 dimensions. 2D shapes are flat shapes. 2D shapes can be laid flat on a piece of paper. 2D shapes have length, width, and height.

2D shapes have length, width, and height.

20. The hexahedron has how many sides coming together at each corner? 2 1 4 5 3

3

19. The octahedron has how many sides? 4 8 3 5 12

8

28. What is a 3D shape? A 3D shape is any shape that takes up air space. A 3D shape is any shape that you see in the 3D movie theater. A 3D shape is any shape that you can draw. A 3D shape is any shape that you see.

A 3D shape is any shape that takes up air space.

4. These polygons belong to which categories? A: Regular B: Convex C: Concave D: Irregular C and D B and D A and B A and C None

A and B

1. Which of the following is NOT a polygon? A brick A window A stop sign A book A donut

A donut

22. What type of triangle is pictured? Acute and isosceles Obtuse and equilateral Scalene and equilateral Obtuse and scalene Acute and right

Acute and isosceles

23. What type of triangle is pictured? Obtuse and equilateral Right and obtuse Acute and equilateral Acute and scalene Obtuse and scalene

Acute and scalene

7. What pictured shape do we draw to identify the measured length of a triangle's side? Ray Angle Arc Segment Side

Arc

9. When constructing triangles, what tool do we use to measure the length of a side? Protractor Compass Ruler Pencil Any straight edge

Compass

5. The traditional star is what kind of polygon? Simple None of the choices Concave Complex Simple, complex, and concave

Complex

26. Which of the following is a 3D shape? Rectangle Parallelogram Cube Square

Cube

13. Which of the following is NOT a 2D shape? Oval Circle Cylinder Rectangle

Cylinder

27. What does the 'D' in 3D stand for? Definitive Dimensional Diagonal Delusional

Dimensional

24. What type of triangle is pictured? Isosceles and acute Equilateral and acute Acute and scalene Equilateral and scalene Obtuse and scalene

Equilateral and acute

14. Which of the following is a 2D shape? Dodecahedron Hexagon Polyhedron Cube

Hexagon

17. What kind of platonic solid is this? Dodecahedron Icosahedron Hexahedron Tetrahedron Octahedron

Icosahedron

29. All of the following are 3D shapes except Pyramid Nonagon Tetrahedron Dodecahedron

Nonagon

25. What type of triangle is pictured? Acute and right Obtuse and scalene Isosceles and scalene Right and scalene Right and equilateral

Obtuse and scalene

8. All of the following are enough to construct a triangle EXCEPT: Two sides and an angle Two angles and a side One angle A triangle One side

One angle

18. The dodecahedron has what kind of shape for its sides? Septagon Triangle Pentagon Hexagon Square

Pentagon

21. What type of triangle is pictured? Acute and isosceles Right and isosceles Obtuse and scalene Obtuse and equilateral Right and scalene

Right and scalene

16. A tetrahedron has what kind of shape for its sides? Octagon Square Hexagon Triangle Pentagon

Triangle

30. How can you test whether a shape is 3D? You can put on 3D glasses to check. You can see if you can place another object in the same space as the shape. You can't. You can measure it to see if it has three dimensions.

You can see if you can place another object in the same space as the shape.

12. A plane is a 3D shape. an airplane. a mathematical term for a flat surface that never ends. a mathematical term for a shape.

a mathematical term for a flat surface that never ends.

11. Another way to think of 2D shapes is any building that you can see. any shape that you can build out of clay. any shape that sits on a flat surface. any shape that can be traced onto a piece of paper from a real world object.

any shape that can be traced onto a piece of paper from a real world object.

10. When constructing a triangle from two angles and a side, the two angles: cannot include an obtuse angle cannot include a right angle cannot add up to more than 180 degrees cannot add up to less than 180 degrees cannot both be acute angles

cannot add up to more than 180 degrees

2. These two shapes belong to which of the following categories? convex regular complex convex and regular

convex

3. A polygon's sides must be what? straight short even numbered odd numbered long

straight

6. What must you be given to construct an equilateral triangle? the length of one side the length of two angles and a side the length of two sides One angle the length of two sides and an angle

the length of one side


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