I'd say the first or third one, however, I'm not too sure:)
Answer:
see explanation
Step-by-step explanation:
A = πr² ← r is the radius and r =
d ← d is the diameter
Hence
π (
d)² = A, that is
= A ( multiply both sides by 4 )
d²π = 4A ( divide both sides by π )
d² =
( take the square root of both sides )
d = 
Answer:x^6/4
Step-by-step explanation:
Simplifying the steps
given: s is the midpoint of rt
definition of midpoint: rs st
given: st xg
transitive property of congruence: rs xy
Weather I think I'm not sure