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Vera_Pavlovna [14]
4 years ago
6

If a figure has eight vertices and 12 edges, how many faces does it have?

Mathematics
2 answers:
Rus_ich [418]4 years ago
8 0

Answer:

6 faces does it have

Step-by-step explanation:

In any convex polyhedron:

let v be the number  vertices , e is the number of edges and f is the number of faces then;

v+f-2 = e              ....[1]

As per the statement:

If a figure has eight vertices and 12 edges

⇒v = 8 and e = 12

Substitute in [1] to solve for f, we have;

8+f-2 = 12

⇒6+f = 12

Subtract 6 from both sides we have;

f = 6

Therefore, 6 faces does it have

vagabundo [1.1K]4 years ago
3 0
6 faces its a polyhedron
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The scale factor is  

Is a reduction

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so

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What is the point-slope form of a line with slope 3/2 that contains the point (-1 2)
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The point-slope form of this equation is y - 2 = 3/2(x + 1)

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3 0
3 years ago
8.6.PS-14
s2008m [1.1K]

Answer:

Answer:

11 feet

Step-by-step explanation:

Area formed by the watery pattern is 379.94 square feet.

Since the water is being sent out in circular pattern, the maximum distance at which the water is reaching out will be equal to the radius of the circle as the sprinkler is at the center of the circle.

Area of a circle is given as:

\begin{gathered}Area=\pi r^{2}\\\\ 379.94 = \pi r^{2}\\\\r^{2}=\frac{379.94}{\pi}\\\\ \text{Using pi equal to 3.14, we get}\\\\ r^{2}=121\\\\ r = 11\end{gathered}

Area=πr

2

379.94=πr

2

r

2

=

π

379.94

Using pi equal to 3.14, we get

r

2

=121

r=11

This means the radius of the circular pattern being formed is 11 feet. So the sprinkler can spread the water 11 feet away from it.

Step-by-step explanation:

im not sure if that is correct

comment if wrong

*hope it help:))

3 0
3 years ago
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