Identify 3D Shapes

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Answer Key & Explanations

Identify 3D Shapes · Kindergarten · Worksheet 1

1. A shape has 6 square faces, 12 edges, and 8 vertices. Each face is the same size square. What shape is this? Answer: D. Cube Solution: A cube has 6 faces, and all of them are squares of the same size A cube has 12 edges where the faces meet A cube has 8 vertices (corners) where the edges come together A rectangular prism has rectangular faces, not all square A triangular pyramid has 4 triangular faces A cylinder has curved…
   Full step-by-step solution

   Step 1: A cube has 6 faces, and all of them are squares of the same size Step 2: A cube has 12 edges where the faces meet Step 3: A cube has 8 vertices (corners) where the edges come together Step 4: A rectangular prism has rectangular faces, not all square Step 5: A triangular pyramid has 4 triangular faces Step 6: A cylinder has curved surfaces, not flat square faces The correct answer is Cube.

2. A construction company is building a playground and needs to order sand to fill a sandbox. The sandbox is shaped like a rectangular prism that measures 8 feet long, 5 feet wide, and 2 feet deep. How many cubic feet of sand do they need to completely fill the sandbox? Answer: D. 80 cubic feet Solution: The sandbox is a rectangular prism with length = 8 feet, width = 5 feet, and height = 2 feet The formula for volume of a rectangular prism is length × width × height Multiply the dimensions: 8 × 5 × 2 First multiply 8 × 5 = 40 Then multiply 40 × 2 = 80 The volume is 80 cubic feet The correct…
   Full step-by-step solution

   Step 1: The sandbox is a rectangular prism with length = 8 feet, width = 5 feet, and height = 2 feet Step 2: The formula for volume of a rectangular prism is length × width × height Step 3: Multiply the dimensions: 8 × 5 × 2 Step 4: First multiply 8 × 5 = 40 Step 5: Then multiply 40 × 2 = 80 Step 6: The volume is 80 cubic feet The correct answer is 80 cubic feet.

3. Lily is playing with her building blocks. She picks up a block that looks like a can of soup. It has 2 round faces and 1 curved side. What shape is Lily's block? Answer: C. Cylinder Solution: A cube has 6 square faces and 12 edges. A pyramid has a square or triangular base and triangular sides that meet at a point. A cylinder has 2 round, flat faces and 1 curved surface, just like a can of soup.
   Full step-by-step solution

   Step 1: A cube has 6 square faces and 12 edges. Step 2: A pyramid has a square or triangular base and triangular sides that meet at a point. Step 3: A cylinder has 2 round, flat faces and 1 curved surface, just like a can of soup. Step 4: A sphere is perfectly round with no flat faces. Since Lily's block has 2 round faces and 1 curved side, it is a cylinder. The correct answer is Cylinder.

4. Look at the box of building blocks. One block has 6 square faces that are all the same size. What shape is this block? Answer: B. Cube Solution: A pyramid has triangular faces and a square or triangular base, not all square faces. A cylinder has two circular faces and one curved surface, not square faces. A cube has 6 faces, and every face is a square of the same size.
   Full step-by-step solution

   Step 1: A pyramid has triangular faces and a square or triangular base, not all square faces. Step 2: A cylinder has two circular faces and one curved surface, not square faces. Step 3: A cube has 6 faces, and every face is a square of the same size. Step 4: A sphere has one curved surface and no flat faces. The block described is a cube, so the correct answer is Cube.