1.
Understanding area and perimeter can help me to know what it will cost me to put a new floor in my home or put a fence around my yard.
Correct Answer
A. True
Explanation
Understanding area and perimeter is important because it allows me to calculate the amount of material I will need for a project such as putting a new floor in my home or installing a fence around my yard. By knowing the area, I can determine the amount of flooring or fencing material required, which in turn helps me estimate the cost of the project accurately. Therefore, the statement is true.
2.
What is the area of the figure?
Correct Answer
B. 8
Explanation
The area of the figure is 8 because the figure is a rectangle with a length of 4 units and a width of 2 units. To find the area of a rectangle, you multiply the length by the width, which in this case is 4 x 2 = 8.
3.
Which number sentence represents the area of the figure?
Correct Answer
B. 3 x 6 =
Explanation
The number sentence "3 x 6 =" represents the area of the figure because it is a multiplication equation, and the area of a figure is calculated by multiplying the length by the width. In this case, the length is 3 and the width is 6, so multiplying them together gives us the area of the figure.
4.
Which number sentence represents the area of the figure?
Correct Answer
C. 4 x 2 =
Explanation
The number sentence 4 x 2 = represents the area of the figure.
5.
Which number sentence represents the perimeter of the figure?
Correct Answer
A. 4+6+4+6 =
Explanation
The given number sentence, 4+6+4+6, represents the perimeter of the figure.
6.
For which figure would the perimeter be solved by the number sentence 4+6+4+6?a. b. c.
Correct Answer
C. Figure c
Explanation
Figure c would have a perimeter that is solved by the number sentence 4+6+4+6 because it has sides of length 4 and 6. The perimeter of a figure is the sum of the lengths of all its sides, so adding up the lengths of the sides in figure c gives us a perimeter of 20.
7.
A rectangle has a length of 8 meters and a width of 5 meters. What is its perimeter and area?
Correct Answer
A. Perimeter: 26 meters, Area: 40 square meters
Explanation
To find the perimeter and area of a rectangle with a length of 8 meters and a width of 5 meters:
The perimeter is calculated by adding the length and the width, then multiplying by 2. So, (8 + 5) times 2 equals 26 meters.
The area is calculated by multiplying the length by the width. So, 8 times 5 equals 40 square meters.
Therefore, the correct answer is: Perimeter: 26 meters, Area: 40 square meters
8.
Which figure has an area of 5?
a. b. c.
Correct Answer
A. A
9.
Considering a single cube is a unit, what will be the perimeter of a rectangle formed by eight such cubes?
Correct Answer
A. 12
Explanation
If a single cube has a unit area (which means each face of the cube has a side length of 1 unit), and you arrange 8 of these cubes to form a rectangular shape, it would be a 2x2x2 cube.
To find the perimeter of this rectangular shape, you can add up the lengths of all the edges. In this case, the perimeter would be:
Perimeter = 2 * (length + width + height)
Perimeter = 2 * (2 + 2 + 2)
Perimeter = 2 * 6
Perimeter = 12 units
So, the perimeter of the rectangle formed by 8 such cubes would be 12 units.
10.
Which figure has a perimeter of 16?
a. b. c.
Correct Answer
B. B
Explanation
Figure b has a perimeter of 16 because it has four sides of equal length, each measuring 4 units. Adding the lengths of all four sides (4 + 4 + 4 + 4) gives a total perimeter of 16 units.