in the image, point a marks the center of the circle. which two lengths must form a ratio of 1:2?
in the image, point a marks the center of the circle. which two lengths must form a ratio of 1:2?
Answer
Explanation:
Step1: Recall circle - related definitions
The radius of a circle is the distance from the center of the circle to any point on the circle. The diameter of a circle is a line - segment that passes through the center of the circle and has its endpoints on the circle, and the diameter (d = 2r) where (r) is the radius.
Step2: Determine the ratio
Since (d = 2r), the ratio of the radius to the diameter of a circle is (r:d=r:2r = 1:2). In the given circle with center (A), any radius (e.g., (AB), (AC), (AD), (AE), (AF), (AG), (AI)) and the diameter (e.g., (CF) which passes through (A)) will have a ratio of (1:2).
Answer:
Radius and diameter.