Common Core: 1st Grade Math : Geometry

Study concepts, example questions & explanations for Common Core: 1st Grade Math

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Example Questions

Example Question #1 : Composing Three Dimensional Shapes

What two shapes can you find in this shape?

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Possible Answers:

A cylinder and a circle

A rectangle and a triangle

A cylinder and a triangle

A rectangle and circle

Correct answer:

A cylinder and a circle

Explanation:

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Example Question #4 : Composing Three Dimensional Shapes

The sides of a rectangular prism are made up of __________. 

Possible Answers:

Rectangles

Triangles

Circles

Trapezoids 

Correct answer:

Rectangles

Explanation:

The sides of a rectangular prism are made up of rectangles. 

142 cube box geometry 3d modeling 512

Example Question #4 : Composing Three Dimensional Shapes

The base, or bottom, of a cylinder is made of up what shape? 

Possible Answers:

Triangle 

Rectangle

Circle 

Square

Correct answer:

Circle 

Explanation:

The base, or bottom, of a cylinder is made up of a circle. 

Cylinder

Example Question #4 : Composing Three Dimensional Shapes

The sides of a cube are made up of ____________. 

Possible Answers:

Rectangles and squares

Squares

Triangles 

Rectangles

Correct answer:

Squares

Explanation:

A cube is a 3-dimensional shape with 6 sides. Each side of a cube is a square. Thus, the sides of a cube are made up of squares. 

142 cube box geometry 3d modeling 512

Example Question #5 : Composing Three Dimensional Shapes

Using the clues below identify the three-dimensional shape.

  • I have 6 flat surfaces.
  • Each flat surface is a square.
  • I have no curved surfaces.

What am I?

Possible Answers:

A sphere

A cube

A cylinder

A cone

Correct answer:

A cube

Explanation:

The three-dimensional figure being described in the riddle is a cube. A cube, like a cardboard box or a die from a board game, has six sides, each side is flat, each side is a square, and there are no curved sides. The other answer choices include curved sides and do not have six flat surfaces.

Example Question #6 : Composing Three Dimensional Shapes

Andy takes two cubes and stacks them on top of each other. What three-dimensional shape did he create?

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Possible Answers:

Pyramid

Cube

Rectangular Prism

Cylinder

Correct answer:

Rectangular Prism

Explanation:

Andy created a rectangular prism by stacking two cubes on top of each other. A rectangular prism has six flat surfaces, six sides, and four identical faces that are larger than a pair of smaller faces. Each flat surface on a rectangular prism is a square or rectangular shape.

Example Question #3 : Composing Three Dimensional Shapes

Using the clues below identify the three-dimensional shape.

  • I have five flat surfaces.
  • Four of my surfaces are triangles.
  • I have no curved surfaces.

What am I?

Possible Answers:

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Correct answer:

Screen shot 2020 09 01 at 10.04.38 am

Explanation:

The three-dimensional figure that is being described in the riddle is a pyramid. A pyramid has four surfaces that are triangles, no curves surfaces, and a total of five flat surfaces. The base of the pyramid in the example is a square. The other figures have curved surfaces and do not match the clues.

Example Question #7 : Composing Three Dimensional Shapes

Using the clues below identify the three-dimensional shape.

  • I have zero flat surfaces.
  • I have zero faces.
  • I have no edges.

What am I?

Possible Answers:

Screen shot 2020 09 01 at 10.04.38 am

Screen shot 2020 09 01 at 10.04.55 am

Screen shot 2020 09 01 at 10.04.43 am

Screen shot 2020 09 01 at 10.04.30 am

Correct answer:

Screen shot 2020 09 01 at 10.04.55 am

Explanation:

The shape that is being described in the riddle is a sphere. A sphere has zero faces, flat surfaces, or edges. It can be described as the shape of a ball or round.

Example Question #1 : Composing Two Dimensional Shapes

What two shapes can you find in this shape?

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Possible Answers:

 A square and a triangle

A trapezoid and a triangle

A trapezoid and a square

 A rectangle and a triangle

Correct answer:

A trapezoid and a triangle

Explanation:

Screen shot 2015 07 24 at 11.02.54 am

Example Question #1 : Composing Two Dimensional Shapes

What two shapes can you find in this shape?

Screen shot 2015 07 24 at 11.04.39 am

Possible Answers:

A triangle and a trapezoid

A square and a trapezoid

A square and a square

 A square and a triangle

Correct answer:

A square and a square

Explanation:

Screen shot 2015 07 24 at 11.05.55 am

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