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Rudiy27
3 years ago
14

The circumference of a circle is 75.36 cm. What is the area of the circle?

Mathematics
2 answers:
Anuta_ua [19.1K]3 years ago
7 0
The area of a circle, given the circumference, is found using this formula:

A = C²/4π

Therefore,
A ≈ 451.93 cm²
bekas [8.4K]3 years ago
7 0
451.93 is the short answer.
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Scorpion4ik [409]

Answer:

x = 7.2m

Step-by-step explanation:

Because it is a right triangle, you can use the Pythagorean theorem:

4^2+6^2 = x^2

16+36 = x^2

52 = x^2

sqrt52 = x

7.2 = x

5 0
2 years ago
Read 2 more answers
A book store has twice as many history books as science books. The store has 81 history and science books altogether how many of
atroni [7]

let h= history books

science books = s

h=2s  there are 2 times as many history as science so to get them equal we double the science

h+s=81    there are 81 total history and science books

2s+s=81   substitute 2s for h in the above equation

3s = 81   combine like terms

s = 27

There are 27 science books

h=2s

h=2(27)

h=54

there are 54 history books

4 0
3 years ago
Help please
Svetlanka [38]
Well first of you need to know that on a straight line there should be 180 degrees. Also a triangle has 180 degrees in total. Now if this is to scale then you can always measure the angle BCA and explain how you took that away from 180 to get whatever. Assuming otherwise i don't know how one can actually complete this question without any measurements, at least one and it would be something anyone can complete. Even if you didn't have anything it should be a equilateral triangle or isosceles. That way you can work out the inside sides than the exterior. But since it's not, I'm not to sure.
5 0
3 years ago
the three largest islands in canada are all north of the arctic cirlce. baffin island has about 2 1/3 times the area of victoria
nikklg [1K]
Maybe you should work on starting you're sentences.
3 0
3 years ago
Need help with this problem.
Galina-37 [17]

Answer:

18

Step-by-step explanation:

To find this we must divide 45 by 20 which gives the answer of 2.25. As we know this we now must multiply that by 8 resulting in to 18.

Therefore the answer is 18

5 0
3 years ago
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