How is a net useful when finding the surface area of prisms and pyramids

1 answer:

7 0

A net is just a 3D shape made into a 2D shape. So when you have a net, it is easier to make sure you count up all the sides without missing one or counting one twice.

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How do i figure out this problem for math {5n+6+(-7n)}5n+6+(−7n)

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3 years ago

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Which are the coordinates of the midpoint of JK with endpoints J(-7, -1) and K(13, -6)?

dsp73

The x coordinate of J is -7. The x coordinate of K is 13. The x coordinates add up to -7+13 = 6. Divide this result in half to get 6/2 = 3. Therefore, the midpoint has an x coordinate of 3.

The y coordinate of J is -1. The y coordinate of K is -6. The y coordinates add up to -1+(-6) = -7. Divide this result in half to get -7/2. Therefore, the midpoint has a y coordinate of -7/2.

This is why the final answer is choice D) (3, -7/2)

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3 years ago

How many cubes with edge length of ⅓ inch are needed to fill a rectangular prism that is 3 inches by 1 inch by 1 ⅓ inches?

Galina-37 [17]

Answer:

<em>We need 108 cubes to fill the rectangular prism</em>

Step-by-step explanation:

We are given the dimensions of a cube with an edge length of 1/3 inch.

A rectangular prism is to be filled out with those cubes. The dimensions of the prism are 3 inches x 1 inch x 1 1/3 inches.

The fraction 1 1/3 is expressed as:

$1\frac{1}{3}=1+\frac{1}{3}=\frac{4}{3}$