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Snowcat [4.5K]
3 years ago
15

Please answer this correctly

Mathematics
1 answer:
Ugo [173]3 years ago
8 0

Answer:

24.99

Step-by-step explanation:

If the area of the quarter circle is 38.465, then the equation to find this would be

3.14*r^2 / 4 = 38.465. we solve for r, the radius, and get two solutions. 7 and -7. Obviously the length of the radius can't be -7, so we know the radius is 7.

Now we must solve for the perimeter. The perimeter is equal to 2r + (2*3.14*r)/4

Plugging 7 in as the radius, r, we get 24.99 as our final answer.

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What is the curved surface area of a cylinder with the circumference of 4 and height of 6
Vera_Pavlovna [14]

The curved surface area of a cylinder is 24cm²

Given the following data;

Base circumference = 4 cm

Height = 6 cm

<h3>How to find the curved surface area of a cylinder?</h3>

Suppose that:

Radius of the considered cylinder = 'r' units

Height of the considered cylinder = 'h' units

Then, the curved surface area of that cylinder is 2πr h

To find the curved surface area (CSA) of the cylinder we have;

CSA of a cylinder = 2πrh

But 2πr = 4 cm

Now Substituting the values into the equation, we have,

CSA of a cylinder = 6 x 4

CSA of a cylinder = 24 cm²

Hence, The curved surface area of a cylinder is 24cm²

Learn more about surface area of a cylinder here:

brainly.com/question/11385509

#SPJ1

7 0
1 year ago
How did Plains Indians from different nations communicate with one another?
shusha [124]

Answer:

c

Step-by-step explanation:


8 0
3 years ago
Help please 50% of my grade!!
lina2011 [118]
#2. (-10, 0) (-10, -8) (0, -8)

#3. (-10, 0) (-10, 8) (-7, 8)

#4. (-10, 0) (-7, 0) (-7, 8)

#8. (0, 8) (0, 0) (8, 0) (10, 4)

#9. (-7, 0) (-7, 8) (0, 8) (0, 0)

#10. (-10, 0) (0, 0) (0, -8)

Not sure about the others. Hope this helps, though.
8 0
4 years ago
I have no idea! Please help 11 points. Correctly
Kobotan [32]
Well my best guess would be adjacent since they share a side. they are not supplementary or vertical and they dont seem to be linear pairs
8 0
4 years ago
The number pi goes on forever with know repeating pattern; therefore, it is irrational. True or False?
iragen [17]
The number Pi (π) goes on forever with no repeating pattern; therefore it is irrational.

Answer: True
3 0
4 years ago
Read 2 more answers
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