To find the surface area of a rectangular prism, you need to find the area of each of the six faces and then add them together.
The formula for the surface area of a rectangular prism is:
Surface Area = 2lw + 2lh + 2wh
Given:
Length (l) = 12 inches
Width (w) = 5 inches
Height (h) = 3 inches
Substitute the given values into the formula:
Surface Area = 2(12)(5) + 2(12)(3) + 2(5)(3)
Surface Area = 120 + 72 + 30
Surface Area = 222
Therefore, the surface area of the rectangular prism is 222 square inches.
Use the image to answer the question.
An illustration shows a rectangular prism with length 12 inches, width 5 inches, and height 3 inches. The top, front, and right faces are visible. The edges that are not visible are represented by dashed lines.
Solve for the surface area of the rectangular prism.
(1 point)
]
5 answers
Use the image to answer the question.
An illustration shows a cube with side 1.5 meters. The top, front, and right faces are visible. The edges that are not visible are represented by dashed lines.
What is the surface area of the cube?
An illustration shows a cube with side 1.5 meters. The top, front, and right faces are visible. The edges that are not visible are represented by dashed lines.
What is the surface area of the cube?
To find the surface area of a cube, you need to find the area of each of its six square faces and then add them together.
Given:
Side length = 1.5 meters
Since a cube has all sides equal, the formula for finding the surface area of a cube is:
Surface Area = 6s^2
Substitute the value of the side length into the formula:
Surface Area = 6(1.5)^2
Surface Area = 6(2.25)
Surface Area = 13.5
Therefore, the surface area of the cube is 13.5 square meters.
Given:
Side length = 1.5 meters
Since a cube has all sides equal, the formula for finding the surface area of a cube is:
Surface Area = 6s^2
Substitute the value of the side length into the formula:
Surface Area = 6(1.5)^2
Surface Area = 6(2.25)
Surface Area = 13.5
Therefore, the surface area of the cube is 13.5 square meters.
What is the surface area of a cube with a side length of 8 inches?(1 point)
Responses
384 square inches
384 square inches
64 square inches
64 square inches
128 square inches
128 square inches
96 square inches
Responses
384 square inches
384 square inches
64 square inches
64 square inches
128 square inches
128 square inches
96 square inches
Surface Area of a cube can be calculated using the formula:
Surface Area = 6s^2,
where s is the side length of the cube.
Given side length, s = 8 inches.
Substitute the value of the side length into the formula:
Surface Area = 6(8)^2
Surface Area = 6(64)
Surface Area = 384
Therefore, the surface area of a cube with a side length of 8 inches is 384 square inches.
So, the correct answer is:
384 square inches
Surface Area = 6s^2,
where s is the side length of the cube.
Given side length, s = 8 inches.
Substitute the value of the side length into the formula:
Surface Area = 6(8)^2
Surface Area = 6(64)
Surface Area = 384
Therefore, the surface area of a cube with a side length of 8 inches is 384 square inches.
So, the correct answer is:
384 square inches
1 answer