We will not know the answer because you didn't tell us the radius or anything
2. Fraction
3. -1 & 1/4
4. -5/7
I believe the answer is false.
explanation: a special triangle has side lengths of 3-4-5 or 6-8-10. In this case since you have 10 one of the other sides would have to be 6 or 8. You can use pythagorean theorem.
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