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3 years ago

Which two-dimensional shapes are needed to build the pentagonal prism shown below?

Mathematics

2 answers:

maksim [4K]3 years ago

5 0

The two-dimensional shapes needed to build the pentagonal prism are 2 pentagons and 5 rectangles.

It has 2 congruent cross-sections that are pentagons, the other 5 faces are rectangles.

Allushta [10]3 years ago

4 0

Answer:

Option C

Step-by-step explanation:

2 pentagons and 5 rectangles are needed to build this pentagonal prism!

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Two less than the sum of twice a number and forty

DiKsa [7]

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3 years ago

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Step-by-step explanation:

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3 years ago

Read 2 more answers

How do you do this problems?

rewona [7]

x = 6

Step-by-step explanation:

It's based on similarity of triangles

DEF ~ △XYZ

$\implies \mathsf{ \frac{DE }{ XY } = \frac{EF}{YZ} = \frac{ FD}{ZX}}$

The sides should be taken in order, like the triangles start with DE and XY so, we'll proportionate DE and XY and then the next two sides and so on.

I'm using $\mathsf{ \frac{DE }{XY } = \frac{EF}{YZ} }$ to get the value of x.

[You can use any two fractions out of the three given above. ]

$\implies \mathsf{ \frac{10}{x - 1} = \frac{8}{4} }$

$\implies \mathsf{ \frac{10}{x - 1} = 2 }$

$\implies \mathsf{ 10 = 2 (x - 1) }$

$\implies \mathsf{ 10 = 2 x - 2 }$

$\implies \mathsf{ 10 + 2= 2 x }$

$\implies \mathsf{ 1 2= 2 x }$

$\implies \mathsf{ x = 6 }$

Hence, the value of x is 6.

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2 years ago

What is true of an equilateral triangle? Two of its side lengths are equal. All its side lengths are equal. None of its side len

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Answer:

All its side lengths are equal

(and all the agle of 60°)

Step-by-step explanation:

What is true of an equilateral triangle? Two of its side lengths are equal. All its side lengths are equal. None of its side lengths are equal. None of its interior angles are equal. What is true of an equilateral triangle ? Two of its side lengths are equal . All its side lengths are equal . None of its side lengths are equal . None of its interior angles are equal .

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2 years ago

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liberstina [14]

Answer:

Step-by-step explanation:

Because I think it is

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2 years ago