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3 years ago

True or false the edges of a polyhedron are the line segments bordering each face?

2 answers:

8 0

True, the edges of a polyhedron are the line segments bordering each face. When two faces come together in a 3D shape a line is formed. This line is called an edge.

san4es73 [151]3 years ago

3 0

<h2>Answer:</h2>

The given statement " the edges of a polyhedron are the line segments bordering each face" is true.

Step-by-step explanation:

A polyhedron is a 3 D solid figure possessing straight edges and flat sides. The flat sides are called the faces and the corners are called vertices. The edges of a polyhedron are the lines at folds, where these faces meet each other. The two faces are joined, it joins in a line.

Therefore, the given statement is true.

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What is the value of x?

GrogVix [38]

Answer:

Step-by-step explanation:

The two triangles $\triangle MNP\sim \triangle RST$ .

Therefore the corresponding sides are proportional.

$\frac{|ST|}{|PN|} =\frac{|TR|}{|MP|}$

From the diagram |MP|=4, |PN|=3, |MN|=5 |ST|=x and |TR|=12.

Let us substitute the values and solve for x.

$\frac{12}{4}=\frac{x}{3}$

Multiply both sides by 3 to get:

$3*\frac{12}{4}=\frac{x}{3}*3$

This implies that:

$9=x$

Therefore x=9

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2 years ago

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Kitty [74]

Answer: Its the third one from up. Second from bottom.

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2 years ago

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finlep [7]

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3 years ago

If a1=1 and an+1=ann+2 for n≥1, determine a1,a2,a3, and a4

Sedbober [7]

Answer:

a1 =1

a2= 1/3

a3= 1/12

a4 = 1/60

Step-by-step explanation:

a(n+1) = an/(n+2)

if n=1

a(1+1)= a1/(1+2)

a2= a1/3

a2= 1/3

if n=2

a(2+1)= a2/(2+2)

a3= a2/4 = a2 × 1/4

a3= 1/3 × 1/4 = 1/12

if n=3

a(3+1)= a3/(3+2)

a4= a3/5 = a3 × 1/5

a4= 1/12 × 1/5 = 1/60

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2 years ago

35 POINTS HELP in the figure above the circle has center O and radius 6 what is the length of arc acb

postnew [5]

Answer:

9.425 or 3π

Step-by-step explanation:

arc length = 2πr(θ/360)

The angle is 90˚ as indicated by the square symbol.

ABC = 2π6(90/360) = 9.425 or 3π

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2 years ago