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Charra [1.4K]
3 years ago
10

What solid is generated when a rectangle is rotated about a line.? a)rectangular pyramid b)cylinder c) rectangular prism d) cone

Mathematics
2 answers:
dlinn [17]3 years ago
8 0
I believe it is a cylinder.
vesna_86 [32]3 years ago
6 0

A solid is a three-dimensional figure obtained by rotating a two-dimensional figure around a straight line .

Different two dimensional figure give different three dimensional figure .

A cone is formed by rotating a right triangle about any line,a sphere is formed by rotating a circle .

If we look at the figure formed by rotating a rectangle around a line the three dimensional figure formed is a cylinder.

The answer is option b)cylinder .

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In the figure below, B is between A and C, and C is between B and D. If AC=9, BD=10, and BC-2, find AD
ehidna [41]

Considering the situation described in the problem, the length of segment AD is of: 17 units.

<h3>How to find the length of segment AD?</h3>

From the situation described in the problem, segment AD is divided into three parts:

  • Part AB.
  • Part BC.
  • Part CD.

Then, the length of segment AD is:

AD = AB + BC + CD.

We have that AC = 9, hence:

AB + BC = 9.

We also have that BD = 10, then:

BC + CD = 10.

Since BC = 2, we have that:

  • AB + BC = 9 -> AB + 2 = 9 -> AB = 7.
  • BC + CD = 10 -> 2 + CD = 10 -> CD = 8.

Then the length of segment AD is given as follows:

AD = AB + BC + CD = 7 + 2 + 8 = 17.

More can be learned about the length of segments at brainly.com/question/7694028

#SPJ1

4 0
2 years ago
Help with question 3 please
Vlad1618 [11]

12-4/5(x+15) = 4

12-(4x+60)/5 = 4

60-4x+60 / 5 = 4

120-4x = 20

-4x = -100

x=25

5 0
3 years ago
HELP PLEAse?
NeTakaya

Answer:

acute, equilateral

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
I NEED HELP!!! ASAP!!!!
Daniel [21]

I hope this helps you

at the 30-60-90 triangle has rules

30=>k

60=>k(square root of) 3

90=>2k

so in this triangle 60=> see 9

k(square root of) 3=9

k=9/(square root of) 3

2k=18/(square root of) 3

at the 45-45-90 triangle rules are

45=>2k

45=>2k

90=>[2k/(square root of 3)] (square root of) 2

x=[18/(square root of 3)].(square root of 2)

x=18(square root of 2)/square root of 3

6 0
3 years ago
Is it a function or not a function
BigorU [14]

Answer:

This is NOT a function. Because if you used the vertical line test it would hit that line 2 times.

Step-by-step explanation:

6 0
3 years ago
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