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erastova [34]
2 years ago
14

PLEASE HELP!!!!!!!

Mathematics
1 answer:
posledela2 years ago
8 0

90° = complimentary

middle one = is neither

3rd one is supplementary

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Answer:

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Step-by-step explanation:

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3 years ago
Find the area of the regular 20​-gon with radius 77 mm.
butalik [34]
The area of a polygon equals
area = circumradius² * number of sides * sin (360 / # of sides) / 2
area = 77² * 20 * sin (360 / 20) / 2
area = 77² * 20 * sin (18) / 2
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3 0
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Step-by-step explanation:

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7 0
3 years ago
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Effectus [21]

Answer:

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3 0
3 years ago
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Lelu [443]

Answer:

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Step-by-step explanation:

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