Answer:
radius = 
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
(x - 1)² + (y + 3)² = 73 ← is in standard form
with r² = 73 ( take the square root of both sides )
r = 
Answer:
(7,-7) that's it according to me
Answer:
59°
Step-by-step explanation:
116-57=59
the outside angle is the 2 inner angles added together
Step-by-step explanation:

value of x is 7
hope this answer helps you dear....take care!