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3 years ago

15

This is a picture of a cube and the net for the cube.

2 answers:

umka21 [38]3 years ago

7 0

Answer: The surface area of the cube is 385 mm^2.

When we are finding the surface area of a shape, we need to add up all the areas of each face. In this case, there are 6 faces.

Each face is the shape of square with sides of 8 mm. So the area of each face is 8 x 8 = 64 square mm.

Since we have 6 faces, we will multiply 64 by 6 to get 384 mm^2 in all.

GarryVolchara [31]3 years ago

5 0

Answer:

384 mm

Step-by-step explanation:

took the test and got it right :)

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3 years ago

PLEASE HELP!!!!!

Ne4ueva [31]

Answer:

Equation: $30=2(x-2)+2(2x+3)$

$x:\frac{14}{3}$

Step-by-step explanation:

By definition, the perimeter of a figure can be calculated by adding the lenghts of its sides.

Knowing this, you can write the following equation:

$P=2(x-2)+2(2x+3)$ <em> [Equation 1]</em>

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$30=2(x-2)+2(2x+3)$

Finally, you must solve for "x" in order to find its value. This is:

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3 years ago

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atroni [7]

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3 years ago