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3 years ago

Please help I need this ASAP!

Mathematics

1 answer:

yanalaym [24]3 years ago

3 0

Answer:

nope

Step-by-step explanation:

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What is the area of a sector with a central angle of 108 degrees and a diameter of 21.2 cm?

Rasek [7]

Answer:

$105.84\ cm^2$

Step-by-step explanation:

step 1

Find the area of the circle

The area of the circle is

$A=\pi r^{2}$

we have

$r=21.2/2=10.6\ cm$ ----> the radius is half the diameter

substitute

$A=\pi (10.6)^{2}$

$A=112.36\pi\ cm^2$

step 2

Find the area of a sector

Remember that

The area of the circle subtends a central angle of 360 degrees

using proportion

Find out the area of a sector with a central angle of 108 degrees

$\frac{112.36\pi}{360^o}=\frac{x}{108^o}\\\\x=112.36\pi(108)/360\\\\x=33.708\pi\ cm^2$

assume

$\pi=3.14$

substitute

$33.708(3.14)=105.84\ cm^2$

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3 years ago

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Fed [463]

Answer:

x = 1, 5

Step-by-step explanation:

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Romashka-Z-Leto [24]

Since sum indicates addition, you want to add the two terms together.
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Answer: 1/44

Step-by-step explanation:

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