The center of a circle is at (-1, 5) and a point on the circle is (5, 13). What is the diameter of the circle?
Options
A
12
B
16
C
20
D
24
Answer & Analysis
Answer
C
Analysis
Question Analysis
This question focuses on circles. The main task is to find the diameter of the circle by calculating the distance between the center and a point on the circle (which gives the radius) and then doubling it.
Key Concept Explanation
The radius of a circle is the distance from the center to a point on the circle, calculated by . The diameter .
Step - by - Step Solution
1. Identify coordinates: Center , point on circle
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