Hello!
OC = OD = Radius
6x + 2 = 10x - 16
6x - 10x = -16 - 2
-4x = -18
x = -18/-4
x = 4.5
Radius = OC = 6(4.5) + 2 = 29 units
30-8=22 but I’m not sure about the graph part
They forget to say "not to scale". I'm guessing this is trig because I don't see another way to do it.
Let's consider x=chord PQ first. By the Law of Cosines

We have an isosceles triangle formed by two radii of 9 cm and x=PQ. By the Law of Cosines again,





The area of the circle is the fraction given by the angle,



Answer: 24.7 sq cm
Answer:
25%
400%
Step-by-step explanation:
37=148x
x=0.25
25%
148=37x
x=4