Answer:
A
Step-by-step explanation:
Given

Multiply numerator/ denominator by
to rationalise the denominator
=
=
→ A
Answer:

Step-by-step explanation:
The equation of a circle is:
where ( h, k ) is the center and r is the radius. Therefore, the equation in this instance is
.
Answer: 12x5
Step-by-step explanation:
2 =1 5= 12x5