6. A pedestrian underpass is constructed using a cylindrical pipe of radius 2.6 m. The bottom of
1 answer:
Answer:
4.5 m
Step-by-step explanation:
Distance from center to the the bottom part where headroom begins is 3.9 m-2.6 m=1.3 m
Since the radius is 2.6 m and acts as hypotenuse(see attached image), then the other length will be
Approximately 2.25 m
The half width is 2.25 m hence full width will be 2.25*2=4.5 m
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Answer and Step-by-step explanation:
First, we need to find out the circumference of the circle.
We know that the circle has a radius of 1, and that we are finding the circumference. We'll use the circumference equation of a circle.
2r
<u>Plug in 1 for r.</u>
=
= circumference of circle
<u>Now, multiply the answer (the circumference) by 4 to get the perimeter of the square.</u>
<u /> x 4 =
= perimeter of square
<u>Now, divide the perimeter by 4 to get what the side of the square is.</u>
<u /> ÷ 4 =
<u>Now, multiply </u><u> by </u>
<u> (side times side) to get the area.</u>
x
=
The answer is A.
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<em><u>I hope this helps!</u></em>
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