Math, asked by SanyuktaNagvekar, 8 months ago

Two circles of radii 7.2 cm and 4.6 cm touches internally. What is the distance between their centres?

Answers

Answered by raotd
0

Answer:

A and B are the centres of outer and inner circles.

BC=4 cm and AO=6 cm

∴AC=OC−OA

=(8−6)cm=2 cm

Longest chord is DE or DC

DC  

2

=AD  

2

−AC  

2

 

=6  

2

−2  

2

=32

∴DC=4  

2

​  

 

∴DE=8  

2

​  

 cm.

Step-by-step explanation:

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