Kiểm tra về Hình 3D

How many vertices, edges, and faces does a 3D shape have?

• Can Nora, Emma, and Noah figure out the number of vertices, edges, and faces of a 3D shape without specific information about the type of 3D shape?

• Nora, Emma, and Noah, do you think the 3D shape has 4 vertices, 6 edges, and 4 faces?

• Is it possible that the 3D shape has 8 vertices, 12 edges, and 6 faces, Nora, Emma, and Noah?

• Do you believe the 3D shape has 5 vertices, 7 edges, and 5 faces, Nora, Emma, and Noah?

Can you spot a 3D shape in the real world, Abigail, Ethan, and Arjun?

• Triangle shape on the desk

• Square shape on the wall

• Box shape containing items inside the house

• Sphere shape in the swimming pool

What are the types of 3D shapes?

• Triangle, rectangle, circle

• Trapezoid, rectangle, square

• Rhombus, square, circle

• Sphere, cube, pyramid, cylinder, cone, cuboid, etc.

How can William, Harper, and Liam have fun while calculating the surface area of a rectangular box?

• 2*(length*width + length*height + width*height)

• length*width*height

• 3*(length*width*height)

• 2*(length + width + height)

How can Elijah, Scarlett, and Anika draw a rectangular box in a fun way?

• Draw a circle and then connect the points on the circle

• Draw two rectangles, one standing and one lying down, then connect the corresponding vertices

• Draw a triangle and then connect the vertices

• Draw a square and then connect the vertices

Which of the following is an example of a rectangular box in the real world?

• Chair

• Closet

• Wardrobe

• Table

Michael, Kai, and Sophia are playing with a giant bubble. How can they calculate the volume of the bubble?

• V = (4/3)πr^3

• V = 2πr^3

• V = (4/3)πr^2

• V = (1/3)πr^2

How can Avery, Benjamin, and Kai have fun drawing a sphere?

• They can draw a sphere using a pencil and drawing paper

• They can draw a sphere using colored pencils and freehand drawing

• They can draw a sphere using a ballpoint pen and drawing on paper

• They can draw a sphere using mathematical formulas or graphic design software

What is the total number of edges in a cube?

• 6

• 8

• 12

• 10

How can Olivia, Mason, and Ava have fun drawing a pyramid?

• They can draw a pyramid using a pencil and drawing paper

• They can draw a pyramid using colored pencils and freehand drawing

• They can draw a pyramid using a ballpoint pen and drawing on paper

• They can draw a pyramid using mathematical formulas or graphic design software