Common Core: 3rd Grade Math : Geometric Measurement: Understanding Concepts of Area and Relating Area to Multiplication and to Addition

Study concepts, example questions & explanations for Common Core: 3rd Grade Math

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Example Questions

Example Question #581 : Geometry

What is the area of the rectangle? 

 Screen shot 2015 11 10 at 1.53.11 pm

 

Possible Answers:

Correct answer:

Explanation:

The formula to find area is . We are given the length and the width from the problem, so we can plug those values into our equation and solve. 

*Area is the number of square units inside a shape, which is why area is always written with square units. 

Example Question #201 : Geometric Measurement: Understanding Concepts Of Area And Relating Area To Multiplication And To Addition

What is the area of the rectangle? 

Screen shot 2015 11 10 at 1.52.51 pm 

 

Possible Answers:

Correct answer:

Explanation:

The formula to find area is . We are given the length and the width from the problem, so we can plug those values into our equation and solve. 

*Area is the number of square units inside a shape, which is why area is always written with square units. 

Example Question #59 : Solve Real World And Mathematical Problems Involving Area: Ccss.Math.Content.3.Md.C.7b

What is the area of the rectangle? 

Screen shot 2015 11 10 at 1.52.22 pm 

 

Possible Answers:

Correct answer:

Explanation:

The formula to find area is . We are given the length and the width from the problem, so we can plug those values into our equation and solve. 

*Area is the number of square units inside a shape, which is why area is always written with square units. 

Example Question #60 : Solve Real World And Mathematical Problems Involving Area: Ccss.Math.Content.3.Md.C.7b

What is the area of the rectangle? 

Screen shot 2015 11 10 at 1.52.04 pm 

 

Possible Answers:

Correct answer:

Explanation:

The formula to find area is . We are given the length and the width from the problem, so we can plug those values into our equation and solve. 

*Area is the number of square units inside a shape, which is why area is always written with square units. 

Example Question #201 : Geometric Measurement: Understanding Concepts Of Area And Relating Area To Multiplication And To Addition

If the formula to find the area of the white side of the rectangle below is , what is the formula to find that area of the purple side? 

Screen shot 2015 11 04 at 1.21.32 pm

Possible Answers:

Correct answer:

Explanation:

Both the purple side and the white side have the same width, . The length of the purple side is . Thus the area formula for the purple side of the rectangle is .

 

Example Question #1261 : Concepts

If the formula to find the area of the white side of the rectangle below is , what is the formula to find that area of the purple side? 

Screen shot 2015 11 04 at 1.30.24 pm

 

Possible Answers:

Correct answer:

Explanation:

Both the purple side and the white side have the same width, . The length of the purple side is . Thus the area formula for the purple side of the rectangle is .

Example Question #1262 : Concepts

If the formula to find the area of the white side of the rectangle below is , what is the formula to find that area of the purple side? 

Screen shot 2015 11 04 at 1.34.48 pm

 

Possible Answers:

Correct answer:

Explanation:

Both the purple side and the white side have the same width, . The length of the purple side is . Thus the area formula for the purple side of the rectangle is .

Example Question #202 : Geometric Measurement: Understanding Concepts Of Area And Relating Area To Multiplication And To Addition

If the formula to find the area of the white side of the rectangle below is , what is the formula to find that area of the purple side? 

Screen shot 2015 11 04 at 1.37.45 pm

 

Possible Answers:

Correct answer:

Explanation:

Both the purple side and the white side have the same width, . The length of the purple side is . Thus the area formula for the purple side of the rectangle is .

Example Question #5 : Use Tiling To Show Area Of Rectangles: Ccss.Math.Content.3.Md.C.7c

If the formula to find the area of the white side of the rectangle below is , what is the formula to find that area of the purple side?

 Screen shot 2015 11 04 at 1.40.04 pm

 

Possible Answers:

Correct answer:

Explanation:

Both the purple side and the white side have the same width, . The length of the purple side is . Thus the area formula for the purple side of the rectangle is .

Example Question #6 : Use Tiling To Show Area Of Rectangles: Ccss.Math.Content.3.Md.C.7c

If the formula to find the area of the white side of the rectangle below is , what is the formula to find that area of the purple side? 

Screen shot 2015 11 04 at 1.42.39 pm

 

Possible Answers:

Correct answer:

Explanation:

Both the purple side and the white side have the same width, . The length of the purple side is . Thus the area formula for the purple side of the rectangle is .

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