Common Core: 7th Grade Math : Grade 7

Study concepts, example questions & explanations for Common Core: 7th Grade Math

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Example Questions

Example Question #5 : Describe The Two Dimensional Figures That Result From Slicing Three Dimensional Figures: Ccss.Math.Content.7.G.A.3

What is the two dimensional shape that is created when a cube is sliced vertically? 

Possible Answers:

Rectangle 

Right triangle 

Triangle 

Square

Correct answer:

Square

Explanation:

A vertical cut is an up and down cut. 

Screen shot 2016 02 26 at 10.47.35 am

This shape is cube, which has a base and sides in the shape of squares; thus, the two dimensional shape is a square. 

Example Question #6 : Describe The Two Dimensional Figures That Result From Slicing Three Dimensional Figures: Ccss.Math.Content.7.G.A.3

What is the two dimensional shape that is created when a right rectangular pyramid is sliced vertically? 

Possible Answers:

Trapezoid 

Triangle 

Square

Rectangle 

Correct answer:

Triangle 

Explanation:

A vertical cut is an up and down cut. 

Screen shot 2016 02 26 at 10.47.39 am

This shape is a right rectangular pyramid, which has a base of a rectangle and sides in the shape of triangles; thus,  a vertical cut would make a triangle. 

Example Question #7 : Describe The Two Dimensional Figures That Result From Slicing Three Dimensional Figures: Ccss.Math.Content.7.G.A.3

What is the two dimensional shape that is created when the shape provided is sliced horizontally? 


Screen shot 2016 02 26 at 10.28.17 am

Possible Answers:

Cube

Right Triangle 

Rectangle 

Triangle 

Correct answer:

Rectangle 

Explanation:

A horizontal cut is a side to side cut. 

Screen shot 2016 02 26 at 10.59.58 am

This shape is rectangular prism, which has a base and sides in the shape of rectangles; thus, the two dimensional shape is a rectangle. 

Example Question #8 : Describe The Two Dimensional Figures That Result From Slicing Three Dimensional Figures: Ccss.Math.Content.7.G.A.3

What is the two dimensional shape that is created when the shape provided is sliced horizontally? 


Screen shot 2016 02 26 at 10.29.37 am

Possible Answers:

Rectangle 

Triangle 

Square

Trapezoid 

Correct answer:

Square

Explanation:

A horizontal cut is a side to side cut. 

Screen shot 2016 02 26 at 11.00.04 am

This shape is cube, which has a base and sides in the shape of squares; thus, the two dimensional shape is a square. 

Example Question #9 : Describe The Two Dimensional Figures That Result From Slicing Three Dimensional Figures: Ccss.Math.Content.7.G.A.3

What is the two dimensional shape that is created when the shape provided is sliced horizontally? 

Screen shot 2016 02 26 at 10.41.26 am

Possible Answers:

Right triangle 

Rectangle 

Triangle 

Trapezoid 

Correct answer:

Rectangle 

Explanation:

A horizontal cut is a side to side cut. 

Screen shot 2016 02 26 at 10.59.43 am

 

This shape is a right rectangular pyramid, which has a base of a rectangle and sides in the shape of triangles; thus, a horizontal cut would make a rectangle. 

Example Question #10 : Describe The Two Dimensional Figures That Result From Slicing Three Dimensional Figures: Ccss.Math.Content.7.G.A.3

What is the two dimensional shape that is created when a rectangular prism is sliced horizontally? 

Possible Answers:

Triangle 

Trapezoid 

Rectangle 

Right triangle 

Correct answer:

Rectangle 

Explanation:

A horizontal cut is a side to side cut. 

Screen shot 2016 02 26 at 10.59.58 am

This shape is rectangular prism, which has a base and sides in the shape of rectangles; thus, the two dimensional shape is a rectangle. 

Example Question #21 : Geometry

What is the two dimensional shape that is created when a right rectangular pyramid is sliced horizontally?

Possible Answers:

Triangle 

Rectangle 

Trapezoid 

Right triangle 

Correct answer:

Rectangle 

Explanation:

A horizontal cut is a side to side cut. 

Screen shot 2016 02 26 at 10.59.43 am

 

This shape is a right rectangular pyramid, which has a base of a rectangle and sides in the shape of triangles; thus, a horizontal cut would make a rectangle. 

Example Question #22 : Geometry

What is the two dimensional shape that is created when a cube is sliced horizontally? 

Possible Answers:

Right triangle 

Rectangle 

Triangle 

Square

Correct answer:

Square

Explanation:

A horizontal cut is a side to side cut. 

Screen shot 2016 02 26 at 11.00.04 am

This shape is cube, which has a base and sides in the shape of squares; thus, the two dimensional shape is a square. 

Example Question #2 : How To Find Circumference

The area of a circle is . Give the circumference  of the circle in terms of .

Let .

Possible Answers:

Correct answer:

Explanation:

The area of a circle can be calculated as , where   is the radius of the circle. 

The circumference can be calculated as , where is the radius of the circle.

 

 

 

Example Question #1 : Know And Use The Formulas For The Area And Circumference Of A Circle: Ccss.Math.Content.7.G.B.4

The perimeter of a given rectangle is equal to the circumference of a given circle. The circle has radius  inches; the width of the rectangle is  inches. What is the length of the rectangle?

Possible Answers:

 inches

 inches

 inches

 inches

 inches

Correct answer:

 inches

Explanation:

The circumference of a circle with radius  inches is 

 inches.

The perimeter of the rectangle is therefore  inches. To find its length, substitute  and  into the equation and solve for :

 inches

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