A rectangle with vertices (0,0), (6,0), (6,2), and (0,2) is rotated around the y-axis. Which of the following is the horizontal
cross section of the three-dimensional figure formed? rectangle circle triangle cylinder
2 answers:
Answer:
B. Circle
Step-by-step explanation:
We are given,
The rectangle with vertices (0,0), (6,0), (6,2) and (0,2) as shown below.
Now, we have that,
This rectangle is rotated around the y-axis.
So, we get,
<em>The resulting 3D figure after the rotation will resemble a cylinder.</em>
So, the horizontal cross-sectional figure formed by a cylinder is a 'circle'.
<h3>Hence, the correct answer is 'Circle'.</h3>
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Answer:
Step-by-step explanation:
Remember that the sides of a cube always have the same length.
In this case the length of the sides L is:
.
The cubes have 6 faces. Then the surface area of the cube is equal to the area of its 6 faces.
Since all sides of the cube have the same measure, then the area of each face is:
Then the area of the 6 faces is:
Answer:
2,494,920
Step-by-step explanation:
We have been given that in 2010 census, there were 3,669 people living in Marlboro, New York. Brooklyn, New York, has 681 times as many people.
Now, we will subtract 3,669 from 2,498,589 to find the number of people more in Brooklyn than Marlboro.
Therefore, there are 2,494,920 more people live in Brooklyn than in Marlboro that is 680 times the people in Marlboro.