Answer:
<u>Option D: A cylinder with a circumference of about 50 units</u>
Step-by-step explanation:
The rest of the question is the attached figure.
The square shown has a perimeter of 32 units. The square is rotated about line k. What shape is created by the rotation and what is the approximate circumference of the base? Circumference of a circle: C = 2πr
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Given: the perimeter of the square = 32
perimeter of a square is four times the length of its side
So, the side length of square = 32/4 = 8 units
The square is rotated about line k.
So, it will form a cylinder with radius 8 units.
Circumference of a circle = 2 π r
Where, r is the radius of the circle.
Circumference of the base is C = 2 π * 8
∴ C = 16π = 16 * 3.14
∴ C = 50.26548 ≈ 50
The shape is created by the rotation is a cylinder with a circumference of about 50 units.
<u>So, the answer option is D.</u>
Answer:
10 feet
Step-by-step explanation:
Given that the distance to be reached is 8 feet above ground and she she placed a ladder so that it reached the bottom of the window, the base of the ladder was 6 feet from the house, the length of the ladder considered with the other lengths forms a right angled triangle.
The length of the ladder represents the hypotenuse side hence using pythagoras theorem
F^2 = 8^2 + 6^2
where F is the length of the ladder in feet
F^2 = 64 + 36
= 100
find the root of both sides
F = 10 feet
The ladder is 10 feet long
Answer:
Always
Step-by-step explanation:
Answer:
Hello! the answer is X=2
Step-by-step explanation:
Answer:
The area for a square is given by:
And we can find the dimension for one side like this:
Replacing we got:
Then since we are interested in the how many feet of fencing does she need, we can find the perimeter given by:
and replacing we got:
Step-by-step explanation:
For this case we know that Suzanne want to put a fance around a square garden with an area of 49 ft^2
The area for a square is given by:
And we can find the dimension for one side like this:
Replacing we got:
Then since we are interested in the how many feet of fencing does she need, we can find the perimeter given by:
and replacing we got:
