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Ipatiy [6.2K]
3 years ago
9

The circumference of a circle is 40 m. Find its area?

Mathematics
1 answer:
earnstyle [38]3 years ago
5 0

If the circumference of a circle is 40 m, its area is 127.32395447352 m².

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Please solve the following questions!!
alexandr402 [8]

Answer:

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Step-by-step explanation:

3.

We know sum of 3 angles in a triangle is 180°.

Looking at the top triangle, we can figure out the third angle. Let third angle be x:

85 + 35 + x = 180

120 + x = 180

x = 180 - 120

x = 60

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So the bottom triangle now has 2 angles, 60 and 64 (given). Let the third angle be y(the one with a question mark). So we can write:

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4.

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Step-by-step explanation:

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12. Which of the following are the coordinates of the vertex of y=-x+ 2x+ 1?
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The radius of a circle measures 15 ft. What is the circumference of the circle?
Pie

Answer:

\boxed {\tt 94.2 \ feet}

Step-by-step explanation:

The circumference of a circle can be found using the following formula:

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Multiply.

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Now we know the diameter. Substitute 30 feet in for d.

c= \pi d

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We are using 3.14 for pi, so substitute it in.

c=3.14 * 30 \ ft

Multiply.

c= 94.2 \ ft

The circumference of the circle is 94.2 feet.

8 0
3 years ago
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ra1l [238]

Answer:

the answer is 48/100 im pretty sure .

Step-by-step explanation:

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