Answer:

Step-by-step explanation:
we know that
In the right triangle of the figure XYZ
Applying the Pythagorean Theorem

substitute the given values



square root both sides

Answer:
its 8, so insert to forms of 8!!! so a and c!
Step-by-step explanation:
C=2•pi• R
D=6 then the radius is 3
2•Pi•3 =18.85
B. Yes, (1,4) is a solution