Four because 90+90+90+90 = 360, which is the angle f a circle
The answer would be B: 4 cm, 8 cm, and 10 cm. The first two lengths, when added together, should equal MORE than the last length. If they do not equal more, the lengths will not make a correct triangle.
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Step-by-step explanation:
Answer:

Explanation:
Complementary Angles sum up to ninety degrees, so do the following:

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