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Mathematics

1 answer:

Artemon [7]3 years ago

5 0

The rules are very simple: an angle is acute if it's less than 90°, whereas it is obtuse if it's more than 90°.

So, for the first task, you just need to compare the given angle with 90°. If the angle is less than 90°, it's acute. Otherwise, it's obtuse.

Moving on, angle B is complement of a angle A if A+B=90. So, for example, the complement of the first angle is 80, because 10+80=90. Note that this implies that obtuse angles don't have a complement.

Finally, angle B is supplement of a angle A if A+B=180. So, for example, the complement of the first angle is 170, because 10+170=180.

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