Common Core: 3rd Grade Math : Measurement & Data

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

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Example Questions

Example Question #121 : Plane Geometry

What is the area of the figure below?


12

Possible Answers:

\displaystyle 73in^2

\displaystyle 35in^2

\displaystyle 48in^2

\displaystyle 83in^2

Correct answer:

\displaystyle 83in^2

Explanation:

To find the area of the figure above, we need to slip the figure into two rectangles. 

12.5

Using our area formula, \displaystyle A=l\times w, we can solve for the area of both of our rectangles

\displaystyle A=6\times 8            \displaystyle A=7\times 5

\displaystyle A=48in^2           \displaystyle A=35in^2

To find our final answer, we need to add the areas together. 

\displaystyle 48in^2+35in^2=83in^2

Example Question #501 : Geometry

What is the area of the figure below?

11

Possible Answers:

\displaystyle 18in^2

\displaystyle 42in^2

\displaystyle 21in^2

\displaystyle 45in^2

\displaystyle 39in^2

Correct answer:

\displaystyle 39in^2

Explanation:

To find the area of the figure above, we need to slip the figure into two rectangles. 

11.5

Using our area formula, \displaystyle A=l\times w, we can solve for the area of both of our rectangles

\displaystyle A=7\times 3            \displaystyle A=6\times 3

\displaystyle A=21in^2           \displaystyle A=18in^2

To find our final answer, we need to add the areas together. 

\displaystyle 21in^2+18in^2=39in^2

Example Question #124 : Plane Geometry

What is the area of the figure below?

10

Possible Answers:

\displaystyle 28in^2

\displaystyle 40in^2

\displaystyle 52in^2

\displaystyle 26in^2

Correct answer:

\displaystyle 52in^2

Explanation:

To find the area of the figure above, we need to slip the figure into two rectangles. 

10.5

Using our area formula, \displaystyle A=l\times w, we can solve for the area of both of our rectangles

\displaystyle A=8\times 3            \displaystyle A=7\times 4

\displaystyle A=24in^2           \displaystyle A=28in^2

To find our final answer, we need to add the areas together. 

\displaystyle 24in^2+28in^2=52in^2

Example Question #1781 : Common Core Math: Grade 3

What is the area of the figure below?

9

Possible Answers:

\displaystyle 90in^2

\displaystyle 126in^2

\displaystyle 82in^2

\displaystyle 57in^2

\displaystyle 36in^2

Correct answer:

\displaystyle 126in^2

Explanation:

To find the area of the figure above, we need to slip the figure into two rectangles. 

9.5

Using our area formula, \displaystyle A=l\times w, we can solve for the area of both of our rectangles

\displaystyle A=10\times 9            \displaystyle A=9\times 4

\displaystyle A=90in^2           \displaystyle A=36in^2

To find our final answer, we need to add the areas together. 

\displaystyle 90in^2+36in^2=126in^2

Example Question #232 : Hspt Mathematics

What is the area of the figure below?

8

Possible Answers:

\displaystyle 25in^2

\displaystyle 50in^2

\displaystyle 15in^2

\displaystyle 35in^2

\displaystyle 60in^2

Correct answer:

\displaystyle 50in^2

Explanation:

To find the area of the figure above, we need to slip the figure into two rectangles. 

8.5

Using our area formula, \displaystyle A=l\times w, we can solve for the area of both of our rectangles

\displaystyle A=7\times 5            \displaystyle A=5\times 3

\displaystyle A=35in^2           \displaystyle A=15in^2

To find our final answer, we need to add the areas together. 

\displaystyle 35in^2+15in^2=50in^2

Example Question #233 : Hspt Mathematics

What is the area of the figure below?

7

Possible Answers:

\displaystyle 16in^2

\displaystyle 42in^2

\displaystyle 36in^2

\displaystyle 52in^2

\displaystyle 68in^2

Correct answer:

\displaystyle 52in^2

Explanation:

To find the area of the figure above, we need to slip the figure into two rectangles. 

7.5

Using our area formula, \displaystyle A=l\times w, we can solve for the area of both of our rectangles

\displaystyle A=6\times 6            \displaystyle A=4\times 4

\displaystyle A=36in^2           \displaystyle A=16in^2

To find our final answer, we need to add the areas together. 

\displaystyle 36in^2+16in^2=52in^2

Example Question #234 : Hspt Mathematics

What is the area of the figure below?


6.5

Possible Answers:

\displaystyle 15in^2

\displaystyle 50in^2

\displaystyle 35in^2

\displaystyle 25in^2

\displaystyle 65in^2

Correct answer:

\displaystyle 65in^2

Explanation:

To find the area of the figure above, we need to slip the figure into two rectangles. 

6.5

Using our area formula, \displaystyle A=l\times w, we can solve for the area of both of our rectangles

\displaystyle A=5\times 10            \displaystyle A=5\times 3

\displaystyle A=50in^2           \displaystyle A=15in^2

To find our final answer, we need to add the areas together. 

\displaystyle 50in^2+15in^2=65in^2

Example Question #31 : How To Find The Area Of A Figure

What is the area of the figure below?


5

Possible Answers:

\displaystyle 72in^2

\displaystyle 49in^2

\displaystyle 52in^2

\displaystyle 68in^2

\displaystyle 36in^2

Correct answer:

\displaystyle 52in^2

Explanation:

To find the area of the figure above, we need to slip the figure into two rectangles. 

5.5

Using our area formula, \displaystyle A=l\times w, we can solve for the area of both of our rectangles

\displaystyle A=4\times 4            \displaystyle A=12\times 3

\displaystyle A=16in^2           \displaystyle A=36in^2

To find our final answer, we need to add the areas together. 

\displaystyle 16in^2+36in^2=52in^2

Example Question #31 : How To Find The Area Of A Figure

What is the area of the figure below?


4

Possible Answers:

\displaystyle 93in^2

\displaystyle 35in^2

\displaystyle 49in^2

\displaystyle 89in^2

\displaystyle 54in^2

Correct answer:

\displaystyle 89in^2

Explanation:

To find the area of the figure above, we need to slip the figure into two rectangles. 

4.5

Using our area formula, \displaystyle A=l\times w, we can solve for the area of both of our rectangles

\displaystyle A=9\times 6            \displaystyle A=7\times 5

\displaystyle A=54in^2           \displaystyle A=35in^2

To find our final answer, we need to add the areas together. 

\displaystyle 54in^2+35in^2=89in^2

Example Question #32 : How To Find The Area Of A Figure

What is the area of the figure below?

3

Possible Answers:

\displaystyle 42in^2

\displaystyle 63in^2

\displaystyle 72in^2

\displaystyle 33in^2

\displaystyle 50in^2

Correct answer:

\displaystyle 42in^2

Explanation:

To find the area of the figure above, we need to slip the figure into two rectangles. 

3.5

Using our area formula, \displaystyle A=l\times w, we can solve for the area of both of our rectangles

\displaystyle A=11\times 3            \displaystyle A=3\times 3

\displaystyle A=33in^2           \displaystyle A=9in^2

To find our final answer, we need to add the areas together. 

\displaystyle 33in^2+9in^2=42in^2

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