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2 years ago

Describe the faces, edges, verticals of each three dimensional figure. Then identify it.

Mathematics

1 answer:

EastWind [94]2 years ago

6 0

When you have to describe a 3D shape you have to keep the following definitions in mind:

1. The face of a 3D shape is a flat surface.

The shape on the picture has 3 rectangular faces and 2 triangular faces, a total of 5 faces.

2. The edge is where two faces meet.

For the shape on the picture, there are 3 edges, where the rectangular faces meet each other, and then three edges where the rectangular faces meet each of the triangular faces, this shape has a total of 9 edges.

3. The vertex is a corner, where the edges meet.

There are three vertices on each end of the shape, so it has a total of 6 vertices.

A shape that has 5 faces, 9 edges, and 6 vertices is a triangular prism.

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Maggie has a container in the shape of a right prism . The formula for its surface area is SA = Ph + 2B solve for h.

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The choose first.

$h = \frac{SA - 2B}{P}$

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$SA = Ph + 2B \\ \\ Ph = SA - 2B \\ \\ h = \frac{SA - 2B}{P}$

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3 years ago

Find the value of x and y in the rhombus.

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Answer:

x = 10, y = 13

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Because EYD is 70, then FEY is also 70. Both triangles are identical.

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45 + 70 + 7x - 5 = 180

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4 years ago

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More than three-quarters of the nation’s colleges and universities now offer online classes, and about 23% of college graduates

RUDIKE [14]

Answer:

0.1997 or 19.97%

Step-by-step explanation:

Have taken course online (H) = 23%

Have NOT taken course online (N) = 77%

Have taken course online and don't believe they provide same value (H&D) = 61%

Have NOT taken course online and don't believe they provide same value (N&D) = 73%

The probability that a student has taken a course online given that she does not believe that online courses provide the same educational value as one taken in person is;

$P(H|D)=\frac{P(H)*P(H\&D)}{P(H)*P(H\&D)+P(N)*P(N\&D)}\\P(H|D)=\frac{0.23*0.61}{0.23*0.61+0.77*0.73}\\P(H|D)=0.1997$

There is a 0.1997 or 19.97% chance that she has taken an online course before.

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4 years ago

Describe the faces, edges, verticals of each three dimensional figure. Then identify it.￼￼￼￼￼

Describe the faces, edges, verticals of each three dimensional figure. Then identify it.