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3 years ago

10

. A rectangular fish pond is 21 ft2 in area. If the owner can surround the pond with a 20-foot fence, what are the dimensions of

the pond?

1 answer:

prisoha [69]3 years ago

7 0

Answer:

It's 3 x 7 pond or a 7 x 3 pond

Step-by-step explanation:

Let the rectangular pond have dimensions l x b.

ATQ, l*b=21 and 2(l+b)=20. Solving it, we get l=3 or 7 and b=7 or 3.

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A polyhedron has 38 edges and 23 faces. Use Euler’s formula to find the number of vertices.

Igoryamba

Answer:

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Step-by-step explanation:

we know that

The Euler's formula state that, the number of vertices, minus the number of edges, plus the number of faces, is equal to two

so

$V - E + F = 2$

substitute the values and solve for V

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$V = 2+15$

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