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pogonyaev
3 years ago
11

Calculate the perimeter of segment in r= 21cm, a=135​

Mathematics
1 answer:
Svetllana [295]3 years ago
4 0

Step-by-step explanation:

r=21cm

a=135

perimeter=2r+ar

=2×21+135×21

=42+2835

=2877cm

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Answer:

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Step-by-step explanation:

These are the answers because:

1) The mixed number is 2 \frac{1}{4} because there are two whole circles that are filled in, and the third circle is  \frac{1}{4}  shaded in. Therefore, the mixed number is  2 \frac{1}{4}

2) The improper fraction is  \frac{9}{4} because there 2 whole circles that are filled in which is \frac{8}{4} , and then  \frac{8}{4} + \frac{1}{4} is \frac{9}{4}

Hope this helps!

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3 years ago
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