There are two circles with radii of 5 cm and 3 cm are positioned so that they touch each other internally. What is the distance between their centers?
Show answer & explanation
Correct answer: A
Explanation
When two circles touch each other internally, the distance between their centers is equal to the difference of their radii.
First radius = 5 cm
Second radius = 3 cm
Distance between centers = 5 − 3 = 2 cm