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stiv31 [10]
2 years ago
15

How many edges does a polyhedron with 8 faces and 12 vertices have?

Mathematics
2 answers:
Savatey [412]2 years ago
7 0

Answer:

18 edges

Step-by-step explanation:

v-e+f=2

number of vertices(12) - number of edges (18) + number of faces(8) = 2

lakkis [162]2 years ago
7 0

Answer:

Edges = 18

Step-by-step explanation:

We know that

v - e + f = 2

Where,

v = vertices

e = edge

f = faces

So,

12 - e + 8 = 2

20 - e = 2

20 - 2 = e

18 = e

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Show how to subdivide and recombine the parallelogram below to form a B by H rectangle thereby explaining why the area of the pa
11Alexandr11 [23.1K]

Below is the proof why the area of a parallelogram is B times H

<h3>How to form a rectangle from the parallelogram</h3>

The following steps would create a rectangle from the parallelogram

  • Step 1: Cut out the triangular part of the parallelogram
  • Step 2: Attach the triangular part to the other end of the parallelogram

See attachment for the steps.

When the rectangle has been created, we have the following dimensions:

Length = h

Width = B

The area of a rectangle is:

Area = Length * Width

This gives

Area = h * B

Evaluate

Area = Bh

Hence, the area of a parallelogram is B times H

Read more about parallelograms at:

brainly.com/question/3050890

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5 0
2 years ago
Fiona wrote the linear equation y = 2/5x -5
postnew [5]

Answer:

i think it is answer choice 2

Step-by-step explanation:

it is the only answer that works with the reciprocal

4 0
3 years ago
If JK and LM are congruent and parallel, then JKL and MLK are congruent.
viktelen [127]

Answer:

Given statement is TRUE.

Step-by-step explanation:

Given that line segment JK and LM are parallel. From picture we see that LK is transversal line.

We know that corresponding angles formed by transversal line are congruent.

Hence ∠JKL = ∠ MLK ...(i)

Now consider triangles JKL and MLK

JK = LM  {Given}

∠JKL = ∠ MLK { Using (i) }

KL = KL  {common sides}

Hence by SAS property of congruency of triangles, ΔJKL and ΔMLK are congruent.

Hence given statement is TRUE.

3 0
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Enter the solution (,) x , y to the system of equations shown. <br><br> y=5<br> y=2x+16
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Answer:

(2, 11)

Step-by-step explanation:

So, we have to make them equal to each other.

5 = 2x + 16

Subtract 5 from both sides

y = 2x + 11

(2, 11)

4 0
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How to find the base of an isosceles when given one side​
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