Answer:
x^2-4x+y^2+6y-108=0
Step-by-step explanation:

Answer:
Denote O as center of circle, draw OA, OC.
As property of tangent line from outside of circle (angle OAD = angle OCD = 90 deg):
=> AOC + D = 180
Moreover, angle AOC = 2 x angle B = 2 x 65 = 130
=> D = 180 - 130 = 50 deg
Hope this helps!
:)
Answer:
x = sine 70° / 8
Step-by-step explanation:
Answer:
Right Triangles
Step-by-step explanation: