If two circles are touch each other internally, then the distance between their centres is
a.d=R+r
b.d=R-r
c.d=R+r÷2
d.d=R-r÷2
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Answer:
option B is correct answer .
Step-by-step explanation:
Here the center of two circles are C₁ and C₂ and radius are r₁ and r₂. The distance between their centers is the differences of their radii.
When they touch each other internally, the distance between their center
=( big radius - small radius)
C₁C₂=r₁−r₂
that means the difference of both radii..
Hope it helps you
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